125314156421 has 16 divisors (see below), whose sum is σ = 126524918400. Its totient is φ = 124110455040.

The previous prime is 125314156397. The next prime is 125314156453. The reversal of 125314156421 is 124651413521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125314156421 - 2²⁶ = 125247047557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125314186421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82280366 + ... + 82281888.

It is an arithmetic number, because the mean of its divisors is an integer number (7907807400).

Almost surely, 2^125314156421 is an apocalyptic number.

It is an amenable number.

125314156421 is a deficient number, since it is larger than the sum of its proper divisors (1210761979).

125314156421 is a wasteful number, since it uses less digits than its factorization.

125314156421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356.

The product of its digits is 28800, while the sum is 35.

Adding to 125314156421 its reverse (124651413521), we get a palindrome (249965569942).

The spelling of 125314156421 in words is "one hundred twenty-five billion, three hundred fourteen million, one hundred fifty-six thousand, four hundred twenty-one".