1154457879 has 32 divisors (see below), whose sum is σ = 1743816960. Its totient is φ = 674956800.

The previous prime is 1154457859. The next prime is 1154457901. The reversal of 1154457879 is 9787544511.

It is not a de Polignac number, because 1154457879 - 2⁷ = 1154457751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154457859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49344 + ... + 68874.

It is an arithmetic number, because the mean of its divisors is an integer number (54494280).

Almost surely, 2^1154457879 is an apocalyptic number.

1154457879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1154457879 is a deficient number, since it is larger than the sum of its proper divisors (589359081).

1154457879 is a wasteful number, since it uses less digits than its factorization.

1154457879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19631.

The product of its digits is 1411200, while the sum is 51.

The square root of 1154457879 is about 33977.3141816713. The cubic root of 1154457879 is about 1049.0415680472.

The spelling of 1154457879 in words is "one billion, one hundred fifty-four million, four hundred fifty-seven thousand, eight hundred seventy-nine".