1102591261 has 16 divisors (see below), whose sum is σ = 1172190400. Its totient is φ = 1034208000.

The previous prime is 1102591249. The next prime is 1102591271. The reversal of 1102591261 is 1621952011.

It is not a de Polignac number, because 1102591261 - 2¹⁷ = 1102460189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102591201) 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, 917461 + ... + 918661.

It is an arithmetic number, because the mean of its divisors is an integer number (73261900).

Almost surely, 2^1102591261 is an apocalyptic number.

It is an amenable number.

1102591261 is a deficient number, since it is larger than the sum of its proper divisors (69599139).

1102591261 is a wasteful number, since it uses less digits than its factorization.

1102591261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 1102591261 is about 33205.2896539091. The cubic root of 1102591261 is about 1033.0900577381.

The spelling of 1102591261 in words is "one billion, one hundred two million, five hundred ninety-one thousand, two hundred sixty-one".