1131254053 has 4 divisors (see below), whose sum is σ = 1190793760. Its totient is φ = 1071714348.

The previous prime is 1131254051. The next prime is 1131254071. The reversal of 1131254053 is 3504521311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3504521311 = 1559 ⋅2247929.

It is a cyclic number.

It is not a de Polignac number, because 1131254053 - 2¹ = 1131254051 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 (1131254051) 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, 29769825 + ... + 29769862.

It is an arithmetic number, because the mean of its divisors is an integer number (297698440).

Almost surely, 2^1131254053 is an apocalyptic number.

It is an amenable number.

1131254053 is a deficient number, since it is larger than the sum of its proper divisors (59539707).

1131254053 is an equidigital number, since it uses as much as digits as its factorization.

1131254053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59539706.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1131254053 is about 33634.1203690538. The cubic root of 1131254053 is about 1041.9656037290.

Adding to 1131254053 its reverse (3504521311), we get a palindrome (4635775364).

The spelling of 1131254053 in words is "one billion, one hundred thirty-one million, two hundred fifty-four thousand, fifty-three".