121695480 has 128 divisors (see below), whose sum is σ = 408110400. Its totient is φ = 32256000.

The previous prime is 121695467. The next prime is 121695527. The reversal of 121695480 is 84596121.

121695480 is a `hidden beast` number, since 12 + 169 + 5 + 480 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303280 + ... + 303680.

Almost surely, 2^121695480 is an apocalyptic number.

121695480 is a gapful number since it is divisible by the number (10) 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 121695480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204055200).

121695480 is an abundant number, since it is smaller than the sum of its proper divisors (286414920).

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

121695480 is a wasteful number, since it uses less digits than its factorization.

121695480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 121695480 is about 11031.5674316935. The cubic root of 121695480 is about 495.5545667126.

The spelling of 121695480 in words is "one hundred twenty-one million, six hundred ninety-five thousand, four hundred eighty".