125391250 has 20 divisors (see below), whose sum is σ = 235035702. Its totient is φ = 50156000.

The previous prime is 125391247. The next prime is 125391271. The reversal of 125391250 is 52193521.

It can be written as a sum of positive squares in 5 ways, for example, as 3575881 + 121815369 = 1891^2 + 11037^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 48907 + ... + 51406.

Almost surely, 2^125391250 is an apocalyptic number.

125391250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125391250 is a deficient number, since it is larger than the sum of its proper divisors (109644452).

125391250 is an equidigital number, since it uses as much as digits as its factorization.

125391250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100335 (or 100320 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 125391250 is about 11197.8234492244. The cubic root of 125391250 is about 500.5211233389.

The spelling of 125391250 in words is "one hundred twenty-five million, three hundred ninety-one thousand, two hundred fifty".