38130031 has 8 divisors (see below), whose sum is σ = 41675904. Its totient is φ = 34728960.

The previous prime is 38130023. The next prime is 38130073. The reversal of 38130031 is 13003183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38130031 - 2³ = 38130023 is a prime.

It is a super-2 number, since 2×38130031² = 2907798528121922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38129990 and 38130008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38130011) 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, 35650 + ... + 36703.

It is an arithmetic number, because the mean of its divisors is an integer number (5209488).

Almost surely, 2^38130031 is an apocalyptic number.

38130031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

38130031 is a deficient number, since it is larger than the sum of its proper divisors (3545873).

38130031 is a wasteful number, since it uses less digits than its factorization.

38130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72401.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 38130031 is about 6174.9519026467. The cubic root of 38130031 is about 336.5805786922.

The spelling of 38130031 in words is "thirty-eight million, one hundred thirty thousand, thirty-one".