125340521772 has 24 divisors (see below), whose sum is σ = 297255665392. Its totient is φ = 41095252800.

The previous prime is 125340521749. The next prime is 125340521783. The reversal of 125340521772 is 277125043521.

It is a self number, because there is not a number n which added to its sum of digits gives 125340521772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85614379 + ... + 85615842.

Almost surely, 2^125340521772 is an apocalyptic number.

125340521772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125340521772 is an abundant number, since it is smaller than the sum of its proper divisors (171915143620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125340521772 is a wasteful number, since it uses less digits than its factorization.

125340521772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171230289 (or 171230287 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 125340521772 in words is "one hundred twenty-five billion, three hundred forty million, five hundred twenty-one thousand, seven hundred seventy-two".