901157 has 4 divisors (see below), whose sum is σ = 906540. Its totient is φ = 895776.

The previous prime is 901141. The next prime is 901169. The reversal of 901157 is 751109.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 857476 + 43681 = 926^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 901157 - 2⁴ = 901141 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 (901177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2432 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (226635).

2⁹⁰¹¹⁵⁷ is an apocalyptic number.

It is an amenable number.

901157 is a deficient number, since it is larger than the sum of its proper divisors (5383).

901157 is a wasteful number, since it uses less digits than its factorization.

901157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 901157 is about 949.2928947380. The cubic root of 901157 is about 96.5902937522.

The spelling of 901157 in words is "nine hundred one thousand, one hundred fifty-seven".