31341157 has 8 divisors (see below), whose sum is σ = 32760000. Its totient is φ = 29927040.

The previous prime is 31341137. The next prime is 31341161. The reversal of 31341157 is 75114313.

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-31341157 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 (31341137) 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, 24469 + ... + 25717.

It is an arithmetic number, because the mean of its divisors is an integer number (4095000).

Almost surely, 2^31341157 is an apocalyptic number.

It is an amenable number.

31341157 is a deficient number, since it is larger than the sum of its proper divisors (1418843).

31341157 is a wasteful number, since it uses less digits than its factorization.

31341157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363.

The product of its digits is 1260, while the sum is 25.

The square root of 31341157 is about 5598.3173364860. The cubic root of 31341157 is about 315.2862334864.

The spelling of 31341157 in words is "thirty-one million, three hundred forty-one thousand, one hundred fifty-seven".