1344551157 has 40 divisors (see below), whose sum is σ = 2106518040. Its totient is φ = 853493760.

The previous prime is 1344551149. The next prime is 1344551183. The reversal of 1344551157 is 7511554431.

1344551157 is a `hidden beast` number, since 13 + 44 + 551 + 1 + 57 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 169364196 + 1175186961 = 13014^2 + 34281^2 .

It is not a de Polignac number, because 1344551157 - 2³ = 1344551149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344551107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 167557 + ... + 175397.

It is an arithmetic number, because the mean of its divisors is an integer number (52662951).

Almost surely, 2^1344551157 is an apocalyptic number.

It is an amenable number.

1344551157 is a deficient number, since it is larger than the sum of its proper divisors (761966883).

1344551157 is an equidigital number, since it uses as much as digits as its factorization.

1344551157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955 (or 7946 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 1344551157 is about 36668.1218090046. The cubic root of 1344551157 is about 1103.7205031477.

The spelling of 1344551157 in words is "one billion, three hundred forty-four million, five hundred fifty-one thousand, one hundred fifty-seven".