1142451313 has 4 divisors (see below), whose sum is σ = 1142676340. Its totient is φ = 1142226288.

The previous prime is 1142451307. The next prime is 1142451319. The reversal of 1142451313 is 3131542411.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1142451307) and next prime (1142451319).

It can be written as a sum of positive squares in 2 ways, for example, as 497646864 + 644804449 = 22308^2 + 25393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142451313 - 2²⁵ = 1108896881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142451319) 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, 104718 + ... + 115111.

It is an arithmetic number, because the mean of its divisors is an integer number (285669085).

Almost surely, 2^1142451313 is an apocalyptic number.

It is an amenable number.

1142451313 is a deficient number, since it is larger than the sum of its proper divisors (225027).

1142451313 is an equidigital number, since it uses as much as digits as its factorization.

1142451313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225026.

The product of its digits is 1440, while the sum is 25.

The square root of 1142451313 is about 33800.1673516567. The cubic root of 1142451313 is about 1045.3921478719.

Adding to 1142451313 its reverse (3131542411), we get a palindrome (4273993724).

The spelling of 1142451313 in words is "one billion, one hundred forty-two million, four hundred fifty-one thousand, three hundred thirteen".