125421377 has 4 divisors (see below), whose sum is σ = 125448960. Its totient is φ = 125393796.

The previous prime is 125421353. The next prime is 125421403. The reversal of 125421377 is 773124521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125421377 is a prime.

It is a super-2 number, since 2×125421377² = 31461043617152258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125421677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5177 + ... + 16662.

It is an arithmetic number, because the mean of its divisors is an integer number (31362240).

Almost surely, 2^125421377 is an apocalyptic number.

It is an amenable number.

125421377 is a deficient number, since it is larger than the sum of its proper divisors (27583).

125421377 is an equidigital number, since it uses as much as digits as its factorization.

125421377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27582.

The product of its digits is 11760, while the sum is 32.

The square root of 125421377 is about 11199.1685852120. The cubic root of 125421377 is about 500.5612058603.

Adding to 125421377 its reverse (773124521), we get a palindrome (898545898).

The spelling of 125421377 in words is "one hundred twenty-five million, four hundred twenty-one thousand, three hundred seventy-seven".