1145655444 has 24 divisors (see below), whose sum is σ = 2674244160. Its totient is φ = 381735424.

The previous prime is 1145655439. The next prime is 1145655479. The reversal of 1145655444 is 4445565411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15697 + ... + 50375.

It is an arithmetic number, because the mean of its divisors is an integer number (111426840).

Almost surely, 2^1145655444 is an apocalyptic number.

It is an amenable number.

1145655444 is an abundant number, since it is smaller than the sum of its proper divisors (1528588716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145655444 is a wasteful number, since it uses less digits than its factorization.

1145655444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37439 (or 37437 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

The square root of 1145655444 is about 33847.5323177333. The cubic root of 1145655444 is about 1046.3685415860.

The spelling of 1145655444 in words is "one billion, one hundred forty-five million, six hundred fifty-five thousand, four hundred forty-four".