144274431 has 16 divisors (see below), whose sum is σ = 220064768. Its totient is φ = 82360800.

The previous prime is 144274399. The next prime is 144274439. The reversal of 144274431 is 134472441.

It is not a de Polignac number, because 144274431 - 2⁵ = 144274399 is a prime.

It is a super-2 number, since 2×144274431² = 41630222880747522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144274439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23061 + ... + 28641.

It is an arithmetic number, because the mean of its divisors is an integer number (13754048).

Almost surely, 2^144274431 is an apocalyptic number.

144274431 is a deficient number, since it is larger than the sum of its proper divisors (75790337).

144274431 is a wasteful number, since it uses less digits than its factorization.

144274431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822.

The product of its digits is 10752, while the sum is 30.

The square root of 144274431 is about 12011.4291822414. The cubic root of 144274431 is about 524.4810363787.

The spelling of 144274431 in words is "one hundred forty-four million, two hundred seventy-four thousand, four hundred thirty-one".