144670031 has 4 divisors (see below), whose sum is σ = 157821864. Its totient is φ = 131518200.

The previous prime is 144670027. The next prime is 144670049. The reversal of 144670031 is 130076441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 144670031 - 2² = 144670027 is a prime.

It is a super-2 number, since 2×144670031² = 41858835739081922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144670021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6575900 + ... + 6575921.

It is an arithmetic number, because the mean of its divisors is an integer number (39455466).

Almost surely, 2^144670031 is an apocalyptic number.

144670031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144670031 is a deficient number, since it is larger than the sum of its proper divisors (13151833).

144670031 is a wasteful number, since it uses less digits than its factorization.

144670031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151832.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 144670031 is about 12027.8855581519. The cubic root of 144670031 is about 524.9599739704.

The spelling of 144670031 in words is "one hundred forty-four million, six hundred seventy thousand, thirty-one".