126624745 has 8 divisors (see below), whose sum is σ = 163638216. Its totient is φ = 93507456.

The previous prime is 126624727. The next prime is 126624781. The reversal of 126624745 is 547426621.

It can be written as a sum of positive squares in 4 ways, for example, as 2903616 + 123721129 = 1704^2 + 11123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126624745 - 2⁵ = 126624713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973972 + ... + 974101.

It is an arithmetic number, because the mean of its divisors is an integer number (20454777).

Almost surely, 2^126624745 is an apocalyptic number.

It is an amenable number.

126624745 is a deficient number, since it is larger than the sum of its proper divisors (37013471).

126624745 is a wasteful number, since it uses less digits than its factorization.

126624745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948091.

The product of its digits is 80640, while the sum is 37.

The square root of 126624745 is about 11252.7661043852. The cubic root of 126624745 is about 502.1570079192.

The spelling of 126624745 in words is "one hundred twenty-six million, six hundred twenty-four thousand, seven hundred forty-five".