126502540 has 24 divisors (see below), whose sum is σ = 268238880. Its totient is φ = 50108928.

The previous prime is 126502489. The next prime is 126502543. The reversal of 126502540 is 45205621.

It is not an unprimeable number, because it can be changed into a prime (126502543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28645 + ... + 32764.

It is an arithmetic number, because the mean of its divisors is an integer number (11176620).

Almost surely, 2^126502540 is an apocalyptic number.

126502540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126502540 is an abundant number, since it is smaller than the sum of its proper divisors (141736340).

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

126502540 is a wasteful number, since it uses less digits than its factorization.

126502540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61521 (or 61519 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 126502540 is about 11247.3347954082. The cubic root of 126502540 is about 501.9954127293.

The spelling of 126502540 in words is "one hundred twenty-six million, five hundred two thousand, five hundred forty".