125740530 has 24 divisors (see below), whose sum is σ = 326925612. Its totient is φ = 33530784.

The previous prime is 125740513. The next prime is 125740543. The reversal of 125740530 is 35047521.

It is a happy number.

125740530 is a `hidden beast` number, since 1 + 257 + 405 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 115799121 + 9941409 = 10761^2 + 3153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125740494 and 125740503.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 698469 + ... + 698648.

Almost surely, 2^125740530 is an apocalyptic number.

125740530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125740530 is an abundant number, since it is smaller than the sum of its proper divisors (201185082).

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

125740530 is a wasteful number, since it uses less digits than its factorization.

125740530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397130 (or 1397127 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 125740530 is about 11213.4084916229. The cubic root of 125740530 is about 500.9854299132.

The spelling of 125740530 in words is "one hundred twenty-five million, seven hundred forty thousand, five hundred thirty".