38130557 has 2 divisors, whose sum is σ = 38130558. Its totient is φ = 38130556.

The previous prime is 38130553. The next prime is 38130559. The reversal of 38130557 is 75503183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37810201 + 320356 = 6149^2 + 566^2 .

It is a cyclic number.

It is not a de Polignac number, because 38130557 - 2² = 38130553 is a prime.

Together with 38130559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38130553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19065278 + 19065279.

It is an arithmetic number, because the mean of its divisors is an integer number (19065279).

Almost surely, 2^38130557 is an apocalyptic number.

It is an amenable number.

38130557 is a deficient number, since it is larger than the sum of its proper divisors (1).

38130557 is an equidigital number, since it uses as much as digits as its factorization.

38130557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 38130557 is about 6174.9944939247. The cubic root of 38130557 is about 336.5821263837.

The spelling of 38130557 in words is "thirty-eight million, one hundred thirty thousand, five hundred fifty-seven".