1151913 has 16 divisors (see below), whose sum is σ = 1848320. Its totient is φ = 623376.

The previous prime is 1151911. The next prime is 1151933. The reversal of 1151913 is 3191511.

It is not a de Polignac number, because 1151913 - 2¹ = 1151911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1151913.

It is not an unprimeable number, because it can be changed into a prime (1151911) 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, 1045 + ... + 1842.

It is an arithmetic number, because the mean of its divisors is an integer number (115520).

2^1151913 is an apocalyptic number.

It is an amenable number.

1151913 is a deficient number, since it is larger than the sum of its proper divisors (696407).

1151913 is a wasteful number, since it uses less digits than its factorization.

1151913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916.

The product of its digits is 135, while the sum is 21.

The square root of 1151913 is about 1073.2720997026. The cubic root of 1151913 is about 104.8270167609.

The spelling of 1151913 in words is "one million, one hundred fifty-one thousand, nine hundred thirteen".