126535250 has 64 divisors (see below), whose sum is σ = 264176640. Its totient is φ = 45100800.

The previous prime is 126535247. The next prime is 126535261. The reversal of 126535250 is 52535621.

It is a happy number.

It is a super-2 number, since 2×126535250² = 32022338985125000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79967 + ... + 81533.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 2^126535250 is an apocalyptic number.

126535250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126535250 is an abundant number, since it is smaller than the sum of its proper divisors (137641390).

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

126535250 is a wasteful number, since it uses less digits than its factorization.

126535250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 126535250 is about 11248.7888236912. The cubic root of 126535250 is about 502.0386763004.

The spelling of 126535250 in words is "one hundred twenty-six million, five hundred thirty-five thousand, two hundred fifty".