144774564 has 36 divisors (see below), whose sum is σ = 371312592. Its totient is φ = 43870640.

The previous prime is 144774559. The next prime is 144774569. The reversal of 144774564 is 465477441.

It is an interprime number because it is at equal distance from previous prime (144774559) and next prime (144774569).

It is not an unprimeable number, because it can be changed into a prime (144774569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48402 + ... + 51305.

Almost surely, 2^144774564 is an apocalyptic number.

It is an amenable number.

144774564 is an abundant number, since it is smaller than the sum of its proper divisors (226538028).

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

144774564 is a wasteful number, since it uses less digits than its factorization.

144774564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99736 (or 99723 counting only the distinct ones).

The product of its digits is 376320, while the sum is 42.

The square root of 144774564 is about 12032.2302172124. The cubic root of 144774564 is about 525.0863821580.

The spelling of 144774564 in words is "one hundred forty-four million, seven hundred seventy-four thousand, five hundred sixty-four".