1154112557 has 8 divisors (see below), whose sum is σ = 1255197720. Its totient is φ = 1054785600.

The previous prime is 1154112539. The next prime is 1154112563. The reversal of 1154112557 is 7552114511.

It can be written as a sum of positive squares in 4 ways, for example, as 80174116 + 1073938441 = 8954^2 + 32771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1154112557 - 2⁸ = 1154112301 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 (1154112517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438182 + ... + 440807.

It is an arithmetic number, because the mean of its divisors is an integer number (156899715).

Almost surely, 2^1154112557 is an apocalyptic number.

It is an amenable number.

1154112557 is a deficient number, since it is larger than the sum of its proper divisors (101085163).

1154112557 is a wasteful number, since it uses less digits than its factorization.

1154112557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879103.

The product of its digits is 7000, while the sum is 32.

The square root of 1154112557 is about 33972.2321462691. The cubic root of 1154112557 is about 1048.9369610092.

The spelling of 1154112557 in words is "one billion, one hundred fifty-four million, one hundred twelve thousand, five hundred fifty-seven".