126225536 has 16 divisors (see below), whose sum is σ = 251465190. Its totient is φ = 63112704.

The previous prime is 126225529. The next prime is 126225557. The reversal of 126225536 is 635522621.

It can be written as a sum of positive squares in only one way, i.e., 110670400 + 15555136 = 10520^2 + 3944^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492941 + ... + 493196.

Almost surely, 2^126225536 is an apocalyptic number.

126225536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126225536 is a deficient number, since it is larger than the sum of its proper divisors (125239654).

126225536 is an frugal number, since it uses more digits than its factorization.

126225536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986151 (or 986139 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 126225536 is about 11235.0138406679. The cubic root of 126225536 is about 501.6287366728.

The spelling of 126225536 in words is "one hundred twenty-six million, two hundred twenty-five thousand, five hundred thirty-six".