372381521 has 2 divisors, whose sum is σ = 372381522. Its totient is φ = 372381520.

The previous prime is 372381467. The next prime is 372381533. The reversal of 372381521 is 125183273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240591121 + 131790400 = 15511^2 + 11480^2 .

It is a cyclic number.

It is not a de Polignac number, because 372381521 - 2²⁶ = 305272657 is a prime.

It is not a weakly prime, because it can be changed into another prime (372381571) 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, 186190760 + 186190761.

It is an arithmetic number, because the mean of its divisors is an integer number (186190761).

Almost surely, 2^372381521 is an apocalyptic number.

It is an amenable number.

372381521 is a deficient number, since it is larger than the sum of its proper divisors (1).

372381521 is an equidigital number, since it uses as much as digits as its factorization.

372381521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 372381521 is about 19297.1894585714. The cubic root of 372381521 is about 719.4424187475.

The spelling of 372381521 in words is "three hundred seventy-two million, three hundred eighty-one thousand, five hundred twenty-one".