125132544033521 has 2 divisors, whose sum is σ = 125132544033522. Its totient is φ = 125132544033520.

The previous prime is 125132544033509. The next prime is 125132544033547. The reversal of 125132544033521 is 125330445231521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77040205335025 + 48092338698496 = 8777255^2 + 6934864^2 .

It is an emirp because it is prime and its reverse (125330445231521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125132544033521 - 2⁴² = 120734497522417 is a prime.

It is not a weakly prime, because it can be changed into another prime (125132544053521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62566272016760 + 62566272016761.

It is an arithmetic number, because the mean of its divisors is an integer number (62566272016761).

Almost surely, 2^{125132544033521} is an apocalyptic number.

It is an amenable number.

125132544033521 is a deficient number, since it is larger than the sum of its proper divisors (1).

125132544033521 is an equidigital number, since it uses as much as digits as its factorization.

125132544033521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 125132544033521 in words is "one hundred twenty-five trillion, one hundred thirty-two billion, five hundred forty-four million, thirty-three thousand, five hundred twenty-one".