9157203941 has 4 divisors (see below), whose sum is σ = 9178352652. Its totient is φ = 9136055232.

The previous prime is 9157203911. The next prime is 9157203953. The reversal of 9157203941 is 1493027519.

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 2020502500 + 7136701441 = 44950^2 + 84479^2 .

It is a cyclic number.

It is not a de Polignac number, because 9157203941 - 2²² = 9153009637 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 (9157203911) 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, 10573706 + ... + 10574571.

It is an arithmetic number, because the mean of its divisors is an integer number (2294588163).

Almost surely, 2^9157203941 is an apocalyptic number.

It is an amenable number.

9157203941 is a deficient number, since it is larger than the sum of its proper divisors (21148711).

9157203941 is a wasteful number, since it uses less digits than its factorization.

9157203941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21148710.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 9157203941 is about 95693.2805425752. The cubic root of 9157203941 is about 2092.1249985481.

The spelling of 9157203941 in words is "nine billion, one hundred fifty-seven million, two hundred three thousand, nine hundred forty-one".