372515531 has 2 divisors, whose sum is σ = 372515532. Its totient is φ = 372515530.

The previous prime is 372515503. The next prime is 372515551. The reversal of 372515531 is 135515273.

It is a strong prime.

It is an emirp because it is prime and its reverse (135515273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 372515531 - 2¹⁴ = 372499147 is a prime.

It is a super-2 number, since 2×372515531² = 277535641672423922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (372515551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186257765 + 186257766.

It is an arithmetic number, because the mean of its divisors is an integer number (186257766).

Almost surely, 2^372515531 is an apocalyptic number.

372515531 is a deficient number, since it is larger than the sum of its proper divisors (1).

372515531 is an equidigital number, since it uses as much as digits as its factorization.

372515531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15750, while the sum is 32.

The square root of 372515531 is about 19300.6614135371. The cubic root of 372515531 is about 719.5287109953.

The spelling of 372515531 in words is "three hundred seventy-two million, five hundred fifteen thousand, five hundred thirty-one".