126840956 has 24 divisors (see below), whose sum is σ = 242521776. Its totient is φ = 57566720.

The previous prime is 126840949. The next prime is 126840977. The reversal of 126840956 is 659048621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33260 + ... + 36876.

It is an arithmetic number, because the mean of its divisors is an integer number (10105074).

Almost surely, 2^126840956 is an apocalyptic number.

It is an amenable number.

126840956 is a deficient number, since it is larger than the sum of its proper divisors (115680820).

126840956 is a wasteful number, since it uses less digits than its factorization.

126840956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 126840956 is about 11262.3690225458. The cubic root of 126840956 is about 502.4426554365.

It can be divided in two parts, 1268 and 40956, that added together give a palindrome (42224).

The spelling of 126840956 in words is "one hundred twenty-six million, eight hundred forty thousand, nine hundred fifty-six".