125730513406 has 4 divisors (see below), whose sum is σ = 188595770112. Its totient is φ = 62865256702.

The previous prime is 125730513353. The next prime is 125730513407. The reversal of 125730513406 is 604315037521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125730513407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31432628350 + ... + 31432628353.

It is an arithmetic number, because the mean of its divisors is an integer number (47148942528).

Almost surely, 2^125730513406 is an apocalyptic number.

125730513406 is a deficient number, since it is larger than the sum of its proper divisors (62865256706).

125730513406 is an equidigital number, since it uses as much as digits as its factorization.

125730513406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62865256705.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 125730513406 in words is "one hundred twenty-five billion, seven hundred thirty million, five hundred thirteen thousand, four hundred six".