126732745 has 16 divisors (see below), whose sum is σ = 155705472. Its totient is φ = 98997120.

The previous prime is 126732721. The next prime is 126732757. The reversal of 126732745 is 547237621.

It is a happy number.

It is not a de Polignac number, because 126732745 - 2²³ = 118344137 is a prime.

It is a super-2 number, since 2×126732745² = 32122377310470050, which contains 22 as substring.

It is a Duffinian number.

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, 35910 + ... + 39280.

It is an arithmetic number, because the mean of its divisors is an integer number (9731592).

Almost surely, 2^126732745 is an apocalyptic number.

It is an amenable number.

126732745 is a deficient number, since it is larger than the sum of its proper divisors (28972727).

126732745 is a wasteful number, since it uses less digits than its factorization.

126732745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552.

The product of its digits is 70560, while the sum is 37.

The square root of 126732745 is about 11257.5639016619. The cubic root of 126732745 is about 502.2997329068.

The spelling of 126732745 in words is "one hundred twenty-six million, seven hundred thirty-two thousand, seven hundred forty-five".