126939078 has 48 divisors (see below), whose sum is σ = 315203616. Its totient is φ = 36167040.

The previous prime is 126939073. The next prime is 126939083. The reversal of 126939078 is 870939621.

It is an interprime number because it is at equal distance from previous prime (126939073) and next prime (126939083).

It is a super-2 number, since 2×126939078² = 32227059046980168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126939073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51850 + ... + 54242.

It is an arithmetic number, because the mean of its divisors is an integer number (6566742).

Almost surely, 2^126939078 is an apocalyptic number.

126939078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

126939078 is an abundant number, since it is smaller than the sum of its proper divisors (188264538).

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

126939078 is a wasteful number, since it uses less digits than its factorization.

126939078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 126939078 is about 11266.7243686885. The cubic root of 126939078 is about 502.5721823983.

The spelling of 126939078 in words is "one hundred twenty-six million, nine hundred thirty-nine thousand, seventy-eight".