1391755152 has 20 divisors (see below), whose sum is σ = 3595367600. Its totient is φ = 463918368.

The previous prime is 1391755129. The next prime is 1391755181. The reversal of 1391755152 is 2515571931.

It is a self number, because there is not a number n which added to its sum of digits gives 1391755152.

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 3 ways as a sum of consecutive naturals, for example, 14497402 + ... + 14497497.

It is an arithmetic number, because the mean of its divisors is an integer number (179768380).

Almost surely, 2^1391755152 is an apocalyptic number.

1391755152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1391755152 is an abundant number, since it is smaller than the sum of its proper divisors (2203612448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391755152 is a wasteful number, since it uses less digits than its factorization.

1391755152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28994910 (or 28994904 counting only the distinct ones).

The product of its digits is 47250, while the sum is 39.

The square root of 1391755152 is about 37306.2347604258. The cubic root of 1391755152 is about 1116.4885644914.

The spelling of 1391755152 in words is "one billion, three hundred ninety-one million, seven hundred fifty-five thousand, one hundred fifty-two".