1154113856 has 42 divisors (see below), whose sum is σ = 2664111258. Its totient is φ = 494618880.

The previous prime is 1154113853. The next prime is 1154113889. The reversal of 1154113856 is 6583114511.

It can be written as a sum of positive squares in only one way, i.e., 897601600 + 256512256 = 29960^2 + 16016^2 .

It is a super-2 number, since 2×1154113856² = 2663957585222377472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154113853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180875 + ... + 187146.

Almost surely, 2^1154113856 is an apocalyptic number.

1154113856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1154113856 is an abundant number, since it is smaller than the sum of its proper divisors (1509997402).

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

1154113856 is an equidigital number, since it uses as much as digits as its factorization.

1154113856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368047 (or 368030 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 1154113856 is about 33972.2512648191. The cubic root of 1154113856 is about 1048.9373545492.

The spelling of 1154113856 in words is "one billion, one hundred fifty-four million, one hundred thirteen thousand, eight hundred fifty-six".