145733638 has 8 divisors (see below), whose sum is σ = 218651688. Its totient is φ = 72849744.

The previous prime is 145733603. The next prime is 145733657. The reversal of 145733638 is 836337541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 145733638.

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 in 3 ways as a sum of consecutive naturals, for example, 12370 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (27331461).

Almost surely, 2^145733638 is an apocalyptic number.

145733638 is a deficient number, since it is larger than the sum of its proper divisors (72918050).

145733638 is an equidigital number, since it uses as much as digits as its factorization.

145733638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17078.

The product of its digits is 181440, while the sum is 40.

The square root of 145733638 is about 12072.0188038290. The cubic root of 145733638 is about 526.2433273998.

The spelling of 145733638 in words is "one hundred forty-five million, seven hundred thirty-three thousand, six hundred thirty-eight".