125513340 has 24 divisors (see below), whose sum is σ = 351437520. Its totient is φ = 33470208.

The previous prime is 125513321. The next prime is 125513371. The reversal of 125513340 is 43315521.

It is a self number, because there is not a number n which added to its sum of digits gives 125513340.

It is a congruent number.

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, 1045885 + ... + 1046004.

It is an arithmetic number, because the mean of its divisors is an integer number (14643230).

Almost surely, 2^125513340 is an apocalyptic number.

125513340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125513340 is an abundant number, since it is smaller than the sum of its proper divisors (225924180).

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

125513340 is a wasteful number, since it uses less digits than its factorization.

125513340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091901 (or 2091899 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 125513340 is about 11203.2736287212. The cubic root of 125513340 is about 500.6835185124.

Adding to 125513340 its reverse (43315521), we get a palindrome (168828861).

The spelling of 125513340 in words is "one hundred twenty-five million, five hundred thirteen thousand, three hundred forty".