144752990 has 8 divisors (see below), whose sum is σ = 260555400. Its totient is φ = 57901192.

The previous prime is 144752989. The next prime is 144752999. The reversal of 144752990 is 99257441.

144752990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×144752990² = 41906856227880200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144752999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237640 + ... + 7237659.

It is an arithmetic number, because the mean of its divisors is an integer number (32569425).

Almost surely, 2^144752990 is an apocalyptic number.

144752990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144752990 is a deficient number, since it is larger than the sum of its proper divisors (115802410).

144752990 is a wasteful number, since it uses less digits than its factorization.

144752990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475306.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 144752990 is about 12031.3336750337. Note that the first 3 decimals coincide. The cubic root of 144752990 is about 525.0602984408.

The spelling of 144752990 in words is "one hundred forty-four million, seven hundred fifty-two thousand, nine hundred ninety".