121372704 has 36 divisors (see below), whose sum is σ = 345154446. Its totient is φ = 40457472.

The previous prime is 121372649. The next prime is 121372721. The reversal of 121372704 is 407273121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 111260304 + 10112400 = 10548^2 + 3180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210429 + ... + 211004.

Almost surely, 2^121372704 is an apocalyptic number.

It is an amenable number.

121372704 is an abundant number, since it is smaller than the sum of its proper divisors (223781742).

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

121372704 is a wasteful number, since it uses less digits than its factorization.

121372704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421449 (or 421438 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 121372704 is about 11016.9280654818. The cubic root of 121372704 is about 495.1160548208.

It can be divided in two parts, 12137 and 2704, that added together give a palindrome (14841).

The spelling of 121372704 in words is "one hundred twenty-one million, three hundred seventy-two thousand, seven hundred four".