144939957 has 8 divisors (see below), whose sum is σ = 195699840. Its totient is φ = 95403360.

The previous prime is 144939947. The next prime is 144939959. The reversal of 144939957 is 759939441.

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

It is not a de Polignac number, because 144939957 - 2¹⁶ = 144874421 is a prime.

It is a super-2 number, since 2×144939957² = 42015182270323698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144939959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305544 + ... + 306017.

It is an arithmetic number, because the mean of its divisors is an integer number (24462480).

Almost surely, 2^144939957 is an apocalyptic number.

It is an amenable number.

144939957 is a deficient number, since it is larger than the sum of its proper divisors (50759883).

144939957 is an equidigital number, since it uses as much as digits as its factorization.

144939957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611643.

The product of its digits is 1224720, while the sum is 51.

The square root of 144939957 is about 12039.1011707685. The cubic root of 144939957 is about 525.2862620247.

The spelling of 144939957 in words is "one hundred forty-four million, nine hundred thirty-nine thousand, nine hundred fifty-seven".