1091862453 has 16 divisors (see below), whose sum is σ = 1596234816. Its totient is φ = 658371840.

The previous prime is 1091862391. The next prime is 1091862479. The reversal of 1091862453 is 3542681901.

It is not a de Polignac number, because 1091862453 - 2⁶ = 1091862389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091864453) 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, 77476 + ... + 90477.

It is an arithmetic number, because the mean of its divisors is an integer number (99764676).

Almost surely, 2^1091862453 is an apocalyptic number.

It is an amenable number.

1091862453 is a deficient number, since it is larger than the sum of its proper divisors (504372363).

1091862453 is a wasteful number, since it uses less digits than its factorization.

1091862453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168164.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1091862453 is about 33043.3420373908. The cubic root of 1091862453 is about 1029.7282888412.

The spelling of 1091862453 in words is "one billion, ninety-one million, eight hundred sixty-two thousand, four hundred fifty-three".