126155940 has 48 divisors (see below), whose sum is σ = 362789952. Its totient is φ = 32731776.

The previous prime is 126155891. The next prime is 126155941. The reversal of 126155940 is 49551621.

It is not an unprimeable number, because it can be changed into a prime (126155941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26194 + ... + 30633.

It is an arithmetic number, because the mean of its divisors is an integer number (7558124).

Almost surely, 2^126155940 is an apocalyptic number.

126155940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126155940 is an abundant number, since it is smaller than the sum of its proper divisors (236634012).

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

126155940 is a wasteful number, since it uses less digits than its factorization.

126155940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56876 (or 56874 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 126155940 is about 11231.9161321655. The cubic root of 126155940 is about 501.5365266681.

The spelling of 126155940 in words is "one hundred twenty-six million, one hundred fifty-five thousand, nine hundred forty".