3138987774 has 32 divisors (see below), whose sum is σ = 6800006304. Its totient is φ = 960255360.

The previous prime is 3138987751. The next prime is 3138987791. The reversal of 3138987774 is 4777898313.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102817 + ... + 129804.

It is an arithmetic number, because the mean of its divisors is an integer number (212500197).

Almost surely, 2^3138987774 is an apocalyptic number.

3138987774 is an abundant number, since it is smaller than the sum of its proper divisors (3661018530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3138987774 is a wasteful number, since it uses less digits than its factorization.

3138987774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232812.

The product of its digits is 7112448, while the sum is 57.

The square root of 3138987774 is about 56026.6702026812. The cubic root of 3138987774 is about 1464.1869824853.

The spelling of 3138987774 in words is "three billion, one hundred thirty-eight million, nine hundred eighty-seven thousand, seven hundred seventy-four".