126969028 has 6 divisors (see below), whose sum is σ = 222195806. Its totient is φ = 63484512.

The previous prime is 126968987. The next prime is 126969049. The reversal of 126969028 is 820969621.

It can be written as a sum of positive squares in only one way, i.e., 101243844 + 25725184 = 10062^2 + 5072^2 .

It is a super-2 number, since 2×126969028² = 32242268142529568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15871125 + ... + 15871132.

Almost surely, 2^126969028 is an apocalyptic number.

It is an amenable number.

126969028 is a deficient number, since it is larger than the sum of its proper divisors (95226778).

126969028 is a wasteful number, since it uses less digits than its factorization.

126969028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31742261 (or 31742259 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 126969028 is about 11268.0534255034. The cubic root of 126969028 is about 502.6117049090.

The spelling of 126969028 in words is "one hundred twenty-six million, nine hundred sixty-nine thousand, twenty-eight".