144536631 has 16 divisors (see below), whose sum is σ = 197809920. Its totient is φ = 93824640.

The previous prime is 144536611. The next prime is 144536641. The reversal of 144536631 is 136635441.

It is not a de Polignac number, because 144536631 - 2⁵ = 144536599 is a prime.

It is a super-2 number, since 2×144536631² = 41781675401660322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144536592 and 144536601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144536611) 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, 44751 + ... + 47871.

It is an arithmetic number, because the mean of its divisors is an integer number (12363120).

Almost surely, 2^144536631 is an apocalyptic number.

144536631 is a deficient number, since it is larger than the sum of its proper divisors (53273289).

144536631 is a wasteful number, since it uses less digits than its factorization.

144536631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526.

The product of its digits is 25920, while the sum is 33.

The square root of 144536631 is about 12022.3388323570. The cubic root of 144536631 is about 524.7985694376.

The spelling of 144536631 in words is "one hundred forty-four million, five hundred thirty-six thousand, six hundred thirty-one".