9640157 has 8 divisors (see below), whose sum is σ = 9777600. Its totient is φ = 9504000.

The previous prime is 9640129. The next prime is 9640171. The reversal of 9640157 is 7510469.

It is a happy number.

9640157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9640157 - 2¹² = 9636061 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640457) 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, 38282 + ... + 38532.

It is an arithmetic number, because the mean of its divisors is an integer number (1222200).

Almost surely, 2^9640157 is an apocalyptic number.

It is an amenable number.

9640157 is a deficient number, since it is larger than the sum of its proper divisors (137443).

9640157 is a wasteful number, since it uses less digits than its factorization.

9640157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 9640157 is about 3104.8602222966. The cubic root of 9640157 is about 212.8276431221.

The spelling of 9640157 in words is "nine million, six hundred forty thousand, one hundred fifty-seven".