125544240 has 60 divisors (see below), whose sum is σ = 421621824. Its totient is φ = 33478272.

The previous prime is 125544233. The next prime is 125544241. The reversal of 125544240 is 42445521.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×125544240² = 31522712394355200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125544241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86464 + ... + 87903.

Almost surely, 2^125544240 is an apocalyptic number.

125544240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125544240 is an abundant number, since it is smaller than the sum of its proper divisors (296077584).

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

125544240 is a wasteful number, since it uses less digits than its factorization.

125544240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174386 (or 174377 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 125544240 is about 11204.6526050565. The cubic root of 125544240 is about 500.7246027278.

Adding to 125544240 its reverse (42445521), we get a palindrome (167989761).

The spelling of 125544240 in words is "one hundred twenty-five million, five hundred forty-four thousand, two hundred forty".