1152261645 has 16 divisors (see below), whose sum is σ = 1871136960. Its totient is φ = 605366784.

The previous prime is 1152261641. The next prime is 1152261647. The reversal of 1152261645 is 5461622511.

It is not a de Polignac number, because 1152261645 - 2² = 1152261641 is a prime.

It is a super-3 number, since 3×1152261645³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152261641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572260 + ... + 574269.

It is an arithmetic number, because the mean of its divisors is an integer number (116946060).

Almost surely, 2^1152261645 is an apocalyptic number.

1152261645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1152261645 is a deficient number, since it is larger than the sum of its proper divisors (718875315).

1152261645 is a wasteful number, since it uses less digits than its factorization.

1152261645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146604.

The product of its digits is 14400, while the sum is 33.

The square root of 1152261645 is about 33944.9796729944. The cubic root of 1152261645 is about 1048.3759155511.

The spelling of 1152261645 in words is "one billion, one hundred fifty-two million, two hundred sixty-one thousand, six hundred forty-five".