121477536 has 96 divisors (see below), whose sum is σ = 369774720. Its totient is φ = 38725632.

The previous prime is 121477511. The next prime is 121477571. The reversal of 121477536 is 635774121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 121477536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16816 + ... + 22928.

It is an arithmetic number, because the mean of its divisors is an integer number (3851820).

Almost surely, 2^121477536 is an apocalyptic number.

121477536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121477536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184887360).

121477536 is an abundant number, since it is smaller than the sum of its proper divisors (248297184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121477536 is a wasteful number, since it uses less digits than its factorization.

121477536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155 (or 6141 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 121477536 is about 11021.6848076871. The cubic root of 121477536 is about 495.2585609698.

It can be divided in two parts, 12147 and 7536, that added together give a 9-th power (19683 = 3⁹).

The spelling of 121477536 in words is "one hundred twenty-one million, four hundred seventy-seven thousand, five hundred thirty-six".