1144253194 has 24 divisors (see below), whose sum is σ = 2050573860. Its totient is φ = 477138816.

The previous prime is 1144253137. The next prime is 1144253213. The reversal of 1144253194 is 4913524411.

It can be written as a sum of positive squares in 2 ways, for example, as 1133197569 + 11055625 = 33663^2 + 3325^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154159 + ... + 161410.

Almost surely, 2^1144253194 is an apocalyptic number.

1144253194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1144253194 is a deficient number, since it is larger than the sum of its proper divisors (906320666).

1144253194 is a wasteful number, since it uses less digits than its factorization.

1144253194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315622 (or 315615 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 1144253194 is about 33826.8117622693. The cubic root of 1144253194 is about 1045.9414587503.

The spelling of 1144253194 in words is "one billion, one hundred forty-four million, two hundred fifty-three thousand, one hundred ninety-four".