144725979397 has 4 divisors (see below), whose sum is σ = 144893681280. Its totient is φ = 144558277516.

The previous prime is 144725979353. The next prime is 144725979509. The reversal of 144725979397 is 793979527441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144725979397 is a prime.

It is a super-2 number, since 2×144725979397² (a number of 23 digits) 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 (144725979197) 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, 83849647 + ... + 83851372.

It is an arithmetic number, because the mean of its divisors is an integer number (36223420320).

Almost surely, 2^144725979397 is an apocalyptic number.

It is an amenable number.

144725979397 is a deficient number, since it is larger than the sum of its proper divisors (167701883).

144725979397 is an equidigital number, since it uses as much as digits as its factorization.

144725979397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167701882.

The product of its digits is 120022560, while the sum is 67.

The spelling of 144725979397 in words is "one hundred forty-four billion, seven hundred twenty-five million, nine hundred seventy-nine thousand, three hundred ninety-seven".