1144391954 has 4 divisors (see below), whose sum is σ = 1716587934. Its totient is φ = 572195976.

The previous prime is 1144391951. The next prime is 1144391957. The reversal of 1144391954 is 4591934411.

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 (1144391951) and next prime (1144391957).

It can be written as a sum of positive squares in only one way, i.e., 1144265929 + 126025 = 33827^2 + 355^2 .

It is not an unprimeable number, because it can be changed into a prime (1144391951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286097987 + ... + 286097990.

Almost surely, 2^1144391954 is an apocalyptic number.

1144391954 is a deficient number, since it is larger than the sum of its proper divisors (572195980).

1144391954 is an equidigital number, since it uses as much as digits as its factorization.

1144391954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572195979.

The product of its digits is 77760, while the sum is 41.

The square root of 1144391954 is about 33828.8627358355. The cubic root of 1144391954 is about 1045.9837363893.

The spelling of 1144391954 in words is "one billion, one hundred forty-four million, three hundred ninety-one thousand, nine hundred fifty-four".