126291628 has 12 divisors (see below), whose sum is σ = 221540760. Its totient is φ = 62994272.

The previous prime is 126291617. The next prime is 126291629. The reversal of 126291628 is 826192621.

It is not an unprimeable number, because it can be changed into a prime (126291629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36001 + ... + 39352.

It is an arithmetic number, because the mean of its divisors is an integer number (18461730).

Almost surely, 2^126291628 is an apocalyptic number.

It is an amenable number.

126291628 is a deficient number, since it is larger than the sum of its proper divisors (95249132).

126291628 is a wasteful number, since it uses less digits than its factorization.

126291628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75776 (or 75774 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 126291628 is about 11237.9547961362. The cubic root of 126291628 is about 501.7162727418.

The spelling of 126291628 in words is "one hundred twenty-six million, two hundred ninety-one thousand, six hundred twenty-eight".