145633918 has 16 divisors (see below), whose sum is σ = 223539264. Its totient is φ = 71127040.

The previous prime is 145633903. The next prime is 145633937. The reversal of 145633918 is 819336541.

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, 59046 + ... + 61462.

It is an arithmetic number, because the mean of its divisors is an integer number (13971204).

Almost surely, 2^145633918 is an apocalyptic number.

145633918 is a deficient number, since it is larger than the sum of its proper divisors (77905346).

145633918 is a wasteful number, since it uses less digits than its factorization.

145633918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107.

The product of its digits is 77760, while the sum is 40.

The square root of 145633918 is about 12067.8878847957. The cubic root of 145633918 is about 526.1232705637.

It can be divided in two parts, 14563 and 3918, that added together give a palindrome (18481).

The spelling of 145633918 in words is "one hundred forty-five million, six hundred thirty-three thousand, nine hundred eighteen".