1131941 has 4 divisors (see below), whose sum is σ = 1162572. Its totient is φ = 1101312.

The previous prime is 1131937. The next prime is 1131943. The reversal of 1131941 is 1491311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1491311 = 193 ⋅7727.

It can be written as a sum of positive squares in 2 ways, for example, as 902500 + 229441 = 950^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131941 - 2² = 1131937 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15260 + ... + 15333.

It is an arithmetic number, because the mean of its divisors is an integer number (290643).

2^1131941 is an apocalyptic number.

It is an amenable number.

1131941 is a deficient number, since it is larger than the sum of its proper divisors (30631).

1131941 is an equidigital number, since it uses as much as digits as its factorization.

1131941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30630.

The product of its digits is 108, while the sum is 20.

The square root of 1131941 is about 1063.9271591608. The cubic root of 1131941 is about 104.2176470100.

The spelling of 1131941 in words is "one million, one hundred thirty-one thousand, nine hundred forty-one".