1144651412 has 12 divisors (see below), whose sum is σ = 2120971860. Its totient is φ = 538659456.

The previous prime is 1144651393. The next prime is 1144651433. The reversal of 1144651412 is 2141564411.

It can be written as a sum of positive squares in 2 ways, for example, as 346927876 + 797723536 = 18626^2 + 28244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8416487 + ... + 8416622.

It is an arithmetic number, because the mean of its divisors is an integer number (176747655).

Almost surely, 2^1144651412 is an apocalyptic number.

It is an amenable number.

1144651412 is a deficient number, since it is larger than the sum of its proper divisors (976320448).

1144651412 is a wasteful number, since it uses less digits than its factorization.

1144651412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16833130 (or 16833128 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 1144651412 is about 33832.6973799016. The cubic root of 1144651412 is about 1046.0627793373.

The spelling of 1144651412 in words is "one billion, one hundred forty-four million, six hundred fifty-one thousand, four hundred twelve".