1155653274 has 8 divisors (see below), whose sum is σ = 2311306560. Its totient is φ = 385217756.

The previous prime is 1155653267. The next prime is 1155653281. The reversal of 1155653274 is 4723565511.

It is an interprime number because it is at equal distance from previous prime (1155653267) and next prime (1155653281).

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

1155653274 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96304434 + ... + 96304445.

It is an arithmetic number, because the mean of its divisors is an integer number (288913320).

Almost surely, 2^1155653274 is an apocalyptic number.

1155653274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1155653274 is a wasteful number, since it uses less digits than its factorization.

1155653274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192608884.

The product of its digits is 126000, while the sum is 39.

The square root of 1155653274 is about 33994.9007058412. The cubic root of 1155653274 is about 1049.4035233534.

The spelling of 1155653274 in words is "one billion, one hundred fifty-five million, six hundred fifty-three thousand, two hundred seventy-four".