144380931 has 8 divisors (see below), whose sum is σ = 193307664. Its totient is φ = 95854080.

The previous prime is 144380927. The next prime is 144380947. The reversal of 144380931 is 139083441.

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

It is not a de Polignac number, because 144380931 - 2² = 144380927 is a prime.

It is a super-2 number, since 2×144380931² = 41691706472853522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144380892 and 144380901.

It is not an unprimeable number, because it can be changed into a prime (144380921) 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, 99126 + ... + 100571.

It is an arithmetic number, because the mean of its divisors is an integer number (24163458).

Almost surely, 2^144380931 is an apocalyptic number.

144380931 is a deficient number, since it is larger than the sum of its proper divisors (48926733).

144380931 is a wasteful number, since it uses less digits than its factorization.

144380931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199941.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 144380931 is about 12015.8616420130. The cubic root of 144380931 is about 524.6100578356.

The spelling of 144380931 in words is "one hundred forty-four million, three hundred eighty thousand, nine hundred thirty-one".