1390530131 has 2 divisors, whose sum is σ = 1390530132. Its totient is φ = 1390530130.

The previous prime is 1390530083. The next prime is 1390530151. The reversal of 1390530131 is 1310350931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1390530131 - 2¹⁸ = 1390267987 is a prime.

It is a super-2 number, since 2×1390530131² = 3867148090437754322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1390530131.

It is not a weakly prime, because it can be changed into another prime (1390530151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695265065 + 695265066.

It is an arithmetic number, because the mean of its divisors is an integer number (695265066).

Almost surely, 2^1390530131 is an apocalyptic number.

1390530131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390530131 is an equidigital number, since it uses as much as digits as its factorization.

1390530131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 1390530131 is about 37289.8126973038. The cubic root of 1390530131 is about 1116.1608910926.

The spelling of 1390530131 in words is "one billion, three hundred ninety million, five hundred thirty thousand, one hundred thirty-one".