1157155479 has 12 divisors (see below), whose sum is σ = 1675538800. Its totient is φ = 769548384.

The previous prime is 1157155453. The next prime is 1157155481. The reversal of 1157155479 is 9745517511.

1157155479 is a `hidden beast` number, since 1 + 1 + 571 + 5 + 5 + 4 + 79 = 666.

1157155479 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1157155479 - 2¹⁹ = 1156631191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157155429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153499 + ... + 160860.

Almost surely, 2^1157155479 is an apocalyptic number.

1157155479 is a deficient number, since it is larger than the sum of its proper divisors (518383321).

1157155479 is a wasteful number, since it uses less digits than its factorization.

1157155479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314774 (or 314771 counting only the distinct ones).

The product of its digits is 220500, while the sum is 45.

The square root of 1157155479 is about 34016.9880941861. The cubic root of 1157155479 is about 1049.8580243411.

The spelling of 1157155479 in words is "one billion, one hundred fifty-seven million, one hundred fifty-five thousand, four hundred seventy-nine".