3138130761529 has 9 divisors (see below), whose sum is σ = 3206405183461. Its totient is φ = 3071280533980.

The previous prime is 3138130761527. The next prime is 3138130761551. The reversal of 3138130761529 is 9251670318313.

The square root of 3138130761529 is 1771477.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3138130761529 - 2¹ = 3138130761527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3138130761527) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 83240574 + ... + 83278264.

Almost surely, 2^{3138130761529} is an apocalyptic number.

3138130761529 is the 1771477-th square number.

3138130761529 is the 885739-th centered octagonal number.

It is an amenable number.

3138130761529 is a deficient number, since it is larger than the sum of its proper divisors (68274421932).

3138130761529 is an frugal number, since it uses more digits than its factorization.

3138130761529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75476 (or 37738 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

Multiplying 3138130761529 by its sum of digits (49), we get a square (153768407314921 = 12400339²).

The spelling of 3138130761529 in words is "three trillion, one hundred thirty-eight billion, one hundred thirty million, seven hundred sixty-one thousand, five hundred twenty-nine".