125203140 has 36 divisors (see below), whose sum is σ = 379783404. Its totient is φ = 33387456.

The previous prime is 125203139. The next prime is 125203157. The reversal of 125203140 is 41302521.

125203140 is a `hidden beast` number, since 1 + 2 + 520 + 3 + 140 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31539456 + 93663684 = 5616^2 + 9678^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 347607 + ... + 347966.

It is an arithmetic number, because the mean of its divisors is an integer number (10549539).

Almost surely, 2^125203140 is an apocalyptic number.

125203140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125203140 is an abundant number, since it is smaller than the sum of its proper divisors (254580264).

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

125203140 is a wasteful number, since it uses less digits than its factorization.

125203140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695588 (or 695583 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 125203140 is about 11189.4208965433. The cubic root of 125203140 is about 500.2707067426.

Adding to 125203140 its reverse (41302521), we get a palindrome (166505661).

The spelling of 125203140 in words is "one hundred twenty-five million, two hundred three thousand, one hundred forty".