145235644 has 6 divisors (see below), whose sum is σ = 254162384. Its totient is φ = 72617820.

The previous prime is 145235609. The next prime is 145235659. The reversal of 145235644 is 446532541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18154452 + ... + 18154459.

Almost surely, 2^145235644 is an apocalyptic number.

It is an amenable number.

145235644 is a deficient number, since it is larger than the sum of its proper divisors (108926740).

145235644 is a wasteful number, since it uses less digits than its factorization.

145235644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36308915 (or 36308913 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 145235644 is about 12051.3751912386. The cubic root of 145235644 is about 525.6432255115.

The spelling of 145235644 in words is "one hundred forty-five million, two hundred thirty-five thousand, six hundred forty-four".