125420530 has 16 divisors (see below), whose sum is σ = 225901080. Its totient is φ = 50136192.

The previous prime is 125420521. The next prime is 125420567. The reversal of 125420530 is 35024521.

It can be written as a sum of positive squares in 4 ways, for example, as 38427601 + 86992929 = 6199^2 + 9327^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18436 + ... + 24304.

Almost surely, 2^125420530 is an apocalyptic number.

125420530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125420530 is a deficient number, since it is larger than the sum of its proper divisors (100480550).

125420530 is a wasteful number, since it uses less digits than its factorization.

125420530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 125420530 is about 11199.1307698410. The cubic root of 125420530 is about 500.5600790553.

The spelling of 125420530 in words is "one hundred twenty-five million, four hundred twenty thousand, five hundred thirty".