1151147856 has 40 divisors (see below), whose sum is σ = 2975836320. Its totient is φ = 383453056.

The previous prime is 1151147849. The next prime is 1151147903. The reversal of 1151147856 is 6587411511.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70306 + ... + 85118.

It is an arithmetic number, because the mean of its divisors is an integer number (74395908).

Almost surely, 2^1151147856 is an apocalyptic number.

1151147856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1151147856 is an abundant number, since it is smaller than the sum of its proper divisors (1824688464).

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

1151147856 is a wasteful number, since it uses less digits than its factorization.

1151147856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16443 (or 16437 counting only the distinct ones).

The product of its digits is 33600, while the sum is 39.

The square root of 1151147856 is about 33928.5699079699. The cubic root of 1151147856 is about 1048.0380160248.

The spelling of 1151147856 in words is "one billion, one hundred fifty-one million, one hundred forty-seven thousand, eight hundred fifty-six".