3138973087 has 4 divisors (see below), whose sum is σ = 3139229016. Its totient is φ = 3138717160.

The previous prime is 3138973073. The next prime is 3138973091. The reversal of 3138973087 is 7803798313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3138973087 - 2¹¹ = 3138971039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3138973087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138973027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108589 + ... + 134422.

It is an arithmetic number, because the mean of its divisors is an integer number (784807254).

Almost surely, 2^3138973087 is an apocalyptic number.

3138973087 is a deficient number, since it is larger than the sum of its proper divisors (255929).

3138973087 is a wasteful number, since it uses less digits than its factorization.

3138973087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255928.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 3138973087 is about 56026.5391310225. The cubic root of 3138973087 is about 1464.1846988884.

The spelling of 3138973087 in words is "three billion, one hundred thirty-eight million, nine hundred seventy-three thousand, eighty-seven".