121610398 has 32 divisors (see below), whose sum is σ = 232263360. Its totient is φ = 46448640.

The previous prime is 121610383. The next prime is 121610399. The reversal of 121610398 is 893016121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121610399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6243 + ... + 16798.

It is an arithmetic number, because the mean of its divisors is an integer number (7258230).

Almost surely, 2^121610398 is an apocalyptic number.

121610398 is a deficient number, since it is larger than the sum of its proper divisors (110652962).

121610398 is a wasteful number, since it uses less digits than its factorization.

121610398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23092.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 121610398 is about 11027.7104604718. The cubic root of 121610398 is about 495.4390526898.

The spelling of 121610398 in words is "one hundred twenty-one million, six hundred ten thousand, three hundred ninety-eight".