126528530 has 32 divisors (see below), whose sum is σ = 234707760. Its totient is φ = 49075200.

The previous prime is 126528527. The next prime is 126528547. The reversal of 126528530 is 35825621.

It can be written as a sum of positive squares in 8 ways, for example, as 83192641 + 43335889 = 9121^2 + 6583^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210230 + ... + 210830.

Almost surely, 2^126528530 is an apocalyptic number.

126528530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126528530 is a deficient number, since it is larger than the sum of its proper divisors (108179230).

126528530 is a wasteful number, since it uses less digits than its factorization.

126528530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 126528530 is about 11248.4901209007. The cubic root of 126528530 is about 502.0297887647.

The spelling of 126528530 in words is "one hundred twenty-six million, five hundred twenty-eight thousand, five hundred thirty".