38457131 has 2 divisors, whose sum is σ = 38457132. Its totient is φ = 38457130.

The previous prime is 38457119. The next prime is 38457151. The reversal of 38457131 is 13175483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38457131 - 2²² = 34262827 is a prime.

It is a super-2 number, since 2×38457131² = 2957901849502322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38457151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19228565 + 19228566.

It is an arithmetic number, because the mean of its divisors is an integer number (19228566).

Almost surely, 2^38457131 is an apocalyptic number.

38457131 is a deficient number, since it is larger than the sum of its proper divisors (1).

38457131 is an equidigital number, since it uses as much as digits as its factorization.

38457131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 38457131 is about 6201.3813783705. The cubic root of 38457131 is about 337.5402962403.

The spelling of 38457131 in words is "thirty-eight million, four hundred fifty-seven thousand, one hundred thirty-one".