121597738 has 8 divisors (see below), whose sum is σ = 184202820. Its totient is φ = 60196800.

The previous prime is 121597727. The next prime is 121597747. The reversal of 121597738 is 837795121.

It can be written as a sum of positive squares in 2 ways, for example, as 120846049 + 751689 = 10993^2 + 867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121597694 and 121597703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300783 + ... + 301186.

Almost surely, 2^121597738 is an apocalyptic number.

121597738 is a deficient number, since it is larger than the sum of its proper divisors (62605082).

121597738 is a wasteful number, since it uses less digits than its factorization.

121597738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602072.

The product of its digits is 105840, while the sum is 43.

The square root of 121597738 is about 11027.1364369903. The cubic root of 121597738 is about 495.4218598725.

The spelling of 121597738 in words is "one hundred twenty-one million, five hundred ninety-seven thousand, seven hundred thirty-eight".