1155745374 has 64 divisors (see below), whose sum is σ = 2811926016. Its totient is φ = 309141504.

The previous prime is 1155745361. The next prime is 1155745399. The reversal of 1155745374 is 4735475511.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133609 + ... + 141995.

It is an arithmetic number, because the mean of its divisors is an integer number (43936344).

Almost surely, 2^1155745374 is an apocalyptic number.

1155745374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155745374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405963008).

1155745374 is an abundant number, since it is smaller than the sum of its proper divisors (1656180642).

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

1155745374 is a wasteful number, since it uses less digits than its factorization.

1155745374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8609.

The product of its digits is 294000, while the sum is 42.

The square root of 1155745374 is about 33996.2552937820. The cubic root of 1155745374 is about 1049.4314000817.

The spelling of 1155745374 in words is "one billion, one hundred fifty-five million, seven hundred forty-five thousand, three hundred seventy-four".