1131880590 has 48 divisors (see below), whose sum is σ = 2955794400. Its totient is φ = 300511296.

The previous prime is 1131880573. The next prime is 1131880591. The reversal of 1131880590 is 950881311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131880591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6850 + ... + 48069.

It is an arithmetic number, because the mean of its divisors is an integer number (61579050).

Almost surely, 2^1131880590 is an apocalyptic number.

1131880590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131880590 is an abundant number, since it is smaller than the sum of its proper divisors (1823913810).

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

1131880590 is a wasteful number, since it uses less digits than its factorization.

1131880590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55161 (or 55158 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1131880590 is about 33643.4330887916. The cubic root of 1131880590 is about 1042.1579299700.

It can be divided in two parts, 1131 and 880590, that added together give a square (881721 = 939²).

The spelling of 1131880590 in words is "one billion, one hundred thirty-one million, eight hundred eighty thousand, five hundred ninety".