3138749401 has 4 divisors (see below), whose sum is σ = 3139203600. Its totient is φ = 3138295204.

The previous prime is 3138749399. The next prime is 3138749447. The reversal of 3138749401 is 1049478313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3138749401 - 2¹ = 3138749399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3138741401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216571 + ... + 230608.

It is an arithmetic number, because the mean of its divisors is an integer number (784800900).

Almost surely, 2^3138749401 is an apocalyptic number.

It is an amenable number.

3138749401 is a deficient number, since it is larger than the sum of its proper divisors (454199).

3138749401 is an equidigital number, since it uses as much as digits as its factorization.

3138749401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454198.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 3138749401 is about 56024.5428450782. The cubic root of 3138749401 is about 1464.1499183631.

The spelling of 3138749401 in words is "three billion, one hundred thirty-eight million, seven hundred forty-nine thousand, four hundred one".