921054157 has 8 divisors (see below), whose sum is σ = 931854560. Its totient is φ = 910316880.

The previous prime is 921054149. The next prime is 921054161. The reversal of 921054157 is 751450129.

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

It is a cyclic number.

It is not a de Polignac number, because 921054157 - 2³ = 921054149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921054257) 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, 13894 + ... + 45112.

It is an arithmetic number, because the mean of its divisors is an integer number (116481820).

Almost surely, 2^921054157 is an apocalyptic number.

It is an amenable number.

921054157 is a deficient number, since it is larger than the sum of its proper divisors (10800403).

921054157 is a wasteful number, since it uses less digits than its factorization.

921054157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31563.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 921054157 is about 30348.8740647820. The cubic root of 921054157 is about 972.9601559214.

The spelling of 921054157 in words is "nine hundred twenty-one million, fifty-four thousand, one hundred fifty-seven".