125667329 has 2 divisors, whose sum is σ = 125667330. Its totient is φ = 125667328.

The previous prime is 125667323. The next prime is 125667341. The reversal of 125667329 is 923766521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71791729 + 53875600 = 8473^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 125667329 - 2²⁴ = 108890113 is a prime.

It is not a weakly prime, because it can be changed into another prime (125667323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62833664 + 62833665.

It is an arithmetic number, because the mean of its divisors is an integer number (62833665).

Almost surely, 2^125667329 is an apocalyptic number.

It is an amenable number.

125667329 is a deficient number, since it is larger than the sum of its proper divisors (1).

125667329 is an equidigital number, since it uses as much as digits as its factorization.

125667329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 125667329 is about 11210.1440222684. The cubic root of 125667329 is about 500.8881932911. Note that the first 3 decimals are identical.

The spelling of 125667329 in words is "one hundred twenty-five million, six hundred sixty-seven thousand, three hundred twenty-nine".