125321377 has 2 divisors, whose sum is σ = 125321378. Its totient is φ = 125321376.

The previous prime is 125321351. The next prime is 125321401. The reversal of 125321377 is 773123521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68409441 + 56911936 = 8271^2 + 7544^2 .

It is an emirp because it is prime and its reverse (773123521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125321377 - 2¹⁹ = 124797089 is a prime.

It is a super-2 number, since 2×125321377² = 31410895066352258, which contains 22 as substring.

It is equal to p_7127383 and since 125321377 and 7127383 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (125321327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62660688 + 62660689.

It is an arithmetic number, because the mean of its divisors is an integer number (62660689).

Almost surely, 2^125321377 is an apocalyptic number.

It is an amenable number.

125321377 is a deficient number, since it is larger than the sum of its proper divisors (1).

125321377 is an equidigital number, since it uses as much as digits as its factorization.

125321377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 125321377 is about 11194.7030777953. The cubic root of 125321377 is about 500.4281359612.

Adding to 125321377 its reverse (773123521), we get a palindrome (898444898).

The spelling of 125321377 in words is "one hundred twenty-five million, three hundred twenty-one thousand, three hundred seventy-seven".