126525630 has 64 divisors (see below), whose sum is σ = 378597888. Its totient is φ = 26290560.

The previous prime is 126525583. The next prime is 126525643. The reversal of 126525630 is 36525621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25077 + ... + 29696.

It is an arithmetic number, because the mean of its divisors is an integer number (5915592).

Almost surely, 2^126525630 is an apocalyptic number.

126525630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126525630 is an abundant number, since it is smaller than the sum of its proper divisors (252072258).

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

126525630 is a wasteful number, since it uses less digits than its factorization.

126525630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54801.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 126525630 is about 11248.3612139725. The cubic root of 126525630 is about 502.0259532727.

Subtracting from 126525630 its reverse (36525621), we obtain a palindrome (90000009).

The spelling of 126525630 in words is "one hundred twenty-six million, five hundred twenty-five thousand, six hundred thirty".