121602057 has 12 divisors (see below), whose sum is σ = 167538960. Its totient is φ = 78451080.

The previous prime is 121602049. The next prime is 121602073. The reversal of 121602057 is 750206121.

It is not a de Polignac number, because 121602057 - 2³ = 121602049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121602007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18207 + ... + 23972.

It is an arithmetic number, because the mean of its divisors is an integer number (13961580).

Almost surely, 2^121602057 is an apocalyptic number.

It is an amenable number.

121602057 is a deficient number, since it is larger than the sum of its proper divisors (45936903).

121602057 is an equidigital number, since it uses as much as digits as its factorization.

121602057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42244 (or 42213 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 121602057 is about 11027.3322703181. The cubic root of 121602057 is about 495.4277253919.

Adding to 121602057 its reverse (750206121), we get a palindrome (871808178).

The spelling of 121602057 in words is "one hundred twenty-one million, six hundred two thousand, fifty-seven".