145444718 has 16 divisors (see below), whose sum is σ = 222566400. Its totient is φ = 71270136.

The previous prime is 145444697. The next prime is 145444721. The reversal of 145444718 is 817444541.

It is a Curzon number.

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, 17633 + ... + 24531.

It is an arithmetic number, because the mean of its divisors is an integer number (13910400).

Almost surely, 2^145444718 is an apocalyptic number.

145444718 is a deficient number, since it is larger than the sum of its proper divisors (77121682).

145444718 is a wasteful number, since it uses less digits than its factorization.

145444718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7111.

The product of its digits is 71680, while the sum is 38.

The square root of 145444718 is about 12060.0463514864. The cubic root of 145444718 is about 525.8953345121.

The spelling of 145444718 in words is "one hundred forty-five million, four hundred forty-four thousand, seven hundred eighteen".