1144313402 has 4 divisors (see below), whose sum is σ = 1716470106. Its totient is φ = 572156700.

The previous prime is 1144313381. The next prime is 1144313413. The reversal of 1144313402 is 2043134411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2043134411 = 71 ⋅28776541.

It can be written as a sum of positive squares in only one way, i.e., 810483961 + 333829441 = 28469^2 + 18271^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286078349 + ... + 286078352.

Almost surely, 2^1144313402 is an apocalyptic number.

1144313402 is a deficient number, since it is larger than the sum of its proper divisors (572156704).

1144313402 is an equidigital number, since it uses as much as digits as its factorization.

1144313402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572156703.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1144313402 is about 33827.7016955039. The cubic root of 1144313402 is about 1045.9598034486.

Adding to 1144313402 its reverse (2043134411), we get a palindrome (3187447813).

The spelling of 1144313402 in words is "one billion, one hundred forty-four million, three hundred thirteen thousand, four hundred two".