121005957 has 8 divisors (see below), whose sum is σ = 161407584. Its totient is φ = 80637488.

The previous prime is 121005923. The next prime is 121005971. The reversal of 121005957 is 759500121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121005957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121005977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 15695.

It is an arithmetic number, because the mean of its divisors is an integer number (20175948).

Almost surely, 2^121005957 is an apocalyptic number.

It is an amenable number.

121005957 is a deficient number, since it is larger than the sum of its proper divisors (40401627).

121005957 is a wasteful number, since it uses less digits than its factorization.

121005957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16579.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 121005957 is about 11000.2707693947. The cubic root of 121005957 is about 494.6168609528.

The spelling of 121005957 in words is "one hundred twenty-one million, five thousand, nine hundred fifty-seven".