1272244475 has 12 divisors (see below), whose sum is σ = 1586304720. Its totient is φ = 1012168800.

The previous prime is 1272244423. The next prime is 1272244499. The reversal of 1272244475 is 5744422721.

It is not a de Polignac number, because 1272244475 - 2⁶ = 1272244411 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136055 + ... + 145104.

It is an arithmetic number, because the mean of its divisors is an integer number (132192060).

Almost surely, 2^1272244475 is an apocalyptic number.

1272244475 is a deficient number, since it is larger than the sum of its proper divisors (314060245).

1272244475 is a wasteful number, since it uses less digits than its factorization.

1272244475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281350 (or 281345 counting only the distinct ones).

The product of its digits is 125440, while the sum is 38.

The square root of 1272244475 is about 35668.5362048963. The cubic root of 1272244475 is about 1083.5697138361.

The spelling of 1272244475 in words is "one billion, two hundred seventy-two million, two hundred forty-four thousand, four hundred seventy-five".