1155152276 has 48 divisors (see below), whose sum is σ = 2163732480. Its totient is φ = 538343520.

The previous prime is 1155152267. The next prime is 1155152281. The reversal of 1155152276 is 6722515511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344335 + ... + 1345193.

It is an arithmetic number, because the mean of its divisors is an integer number (45077760).

Almost surely, 2^1155152276 is an apocalyptic number.

It is an amenable number.

1155152276 is a deficient number, since it is larger than the sum of its proper divisors (1008580204).

1155152276 is a wasteful number, since it uses less digits than its factorization.

1155152276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1242 counting only the distinct ones).

The product of its digits is 21000, while the sum is 35.

The square root of 1155152276 is about 33987.5311842446. The cubic root of 1155152276 is about 1049.2518558736.

Adding to 1155152276 its reverse (6722515511), we get a palindrome (7877667787).

The spelling of 1155152276 in words is "one billion, one hundred fifty-five million, one hundred fifty-two thousand, two hundred seventy-six".