3138503457 has 16 divisors (see below), whose sum is σ = 4321169408. Its totient is φ = 2024133840.

The previous prime is 3138503449. The next prime is 3138503507. The reversal of 3138503457 is 7543058313.

It is not a de Polignac number, because 3138503457 - 2³ = 3138503449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3138503057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452538 + ... + 459420.

It is an arithmetic number, because the mean of its divisors is an integer number (270073088).

Almost surely, 2^3138503457 is an apocalyptic number.

It is an amenable number.

3138503457 is a deficient number, since it is larger than the sum of its proper divisors (1182665951).

3138503457 is a wasteful number, since it uses less digits than its factorization.

3138503457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11820.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 3138503457 is about 56022.3478354844. The cubic root of 3138503457 is about 1464.1116750750. Note that the first 3 decimals are identical.

The spelling of 3138503457 in words is "three billion, one hundred thirty-eight million, five hundred three thousand, four hundred fifty-seven".