125142404240 has 80 divisors (see below), whose sum is σ = 332615877888. Its totient is φ = 42893756928.

The previous prime is 125142404197. The next prime is 125142404287. The reversal of 125142404240 is 42404241521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2060549 + ... + 2120411.

Almost surely, 2^125142404240 is an apocalyptic number.

125142404240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125142404240 is an abundant number, since it is smaller than the sum of its proper divisors (207473473648).

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

125142404240 is a wasteful number, since it uses less digits than its factorization.

125142404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63616 (or 63610 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 125142404240 its reverse (42404241521), we get a palindrome (167546645761).

The spelling of 125142404240 in words is "one hundred twenty-five billion, one hundred forty-two million, four hundred four thousand, two hundred forty".