144648631 has 8 divisors (see below), whose sum is σ = 154738080. Its totient is φ = 134734848.

The previous prime is 144648619. The next prime is 144648643. The reversal of 144648631 is 136846441.

It is an interprime number because it is at equal distance from previous prime (144648619) and next prime (144648643).

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

It is a cyclic number.

It is not a de Polignac number, because 144648631 - 2⁵ = 144648599 is a prime.

It is a super-2 number, since 2×144648631² = 41846452900348322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144648601) 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, 42211 + ... + 45508.

It is an arithmetic number, because the mean of its divisors is an integer number (19342260).

Almost surely, 2^144648631 is an apocalyptic number.

144648631 is a deficient number, since it is larger than the sum of its proper divisors (10089449).

144648631 is an equidigital number, since it uses as much as digits as its factorization.

144648631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87833.

The product of its digits is 55296, while the sum is 37.

The square root of 144648631 is about 12026.9959258329. The cubic root of 144648631 is about 524.9340881728.

The spelling of 144648631 in words is "one hundred forty-four million, six hundred forty-eight thousand, six hundred thirty-one".