1391912148 has 24 divisors (see below), whose sum is σ = 3543049440. Its totient is φ = 421791520.

The previous prime is 1391912143. The next prime is 1391912153. The reversal of 1391912148 is 8412191931.

It is an interprime number because it is at equal distance from previous prime (1391912143) and next prime (1391912153).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391912141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5272263 + ... + 5272526.

It is an arithmetic number, because the mean of its divisors is an integer number (147627060).

Almost surely, 2^1391912148 is an apocalyptic number.

It is an amenable number.

1391912148 is an abundant number, since it is smaller than the sum of its proper divisors (2151137292).

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

1391912148 is a wasteful number, since it uses less digits than its factorization.

1391912148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10544807 (or 10544805 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The square root of 1391912148 is about 37308.3388533984. The cubic root of 1391912148 is about 1116.5305444924.

The spelling of 1391912148 in words is "one billion, three hundred ninety-one million, nine hundred twelve thousand, one hundred forty-eight".