1272525770 has 32 divisors (see below), whose sum is σ = 2316625920. Its totient is φ = 503238400.

The previous prime is 1272525767. The next prime is 1272525791. The reversal of 1272525770 is 775252721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540095 + ... + 542445.

It is an arithmetic number, because the mean of its divisors is an integer number (72394560).

Almost surely, 2^1272525770 is an apocalyptic number.

1272525770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272525770 is a deficient number, since it is larger than the sum of its proper divisors (1044100150).

1272525770 is a wasteful number, since it uses less digits than its factorization.

1272525770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950.

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 1272525770 is about 35672.4791681206. The cubic root of 1272525770 is about 1083.6495675349.

The spelling of 1272525770 in words is "one billion, two hundred seventy-two million, five hundred twenty-five thousand, seven hundred seventy".