1445572979 has 2 divisors, whose sum is σ = 1445572980. Its totient is φ = 1445572978.

The previous prime is 1445572963. The next prime is 1445573009. The reversal of 1445572979 is 9792755441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445572979 - 2⁴ = 1445572963 is a prime.

It is a super-2 number, since 2×1445572979² = 4179362475229868882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1445572979.

It is not a weakly prime, because it can be changed into another prime (1444572979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722786489 + 722786490.

It is an arithmetic number, because the mean of its divisors is an integer number (722786490).

Almost surely, 2^1445572979 is an apocalyptic number.

1445572979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445572979 is an equidigital number, since it uses as much as digits as its factorization.

1445572979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 53.

The square root of 1445572979 is about 38020.6914587307. The cubic root of 1445572979 is about 1130.6981299562.

The spelling of 1445572979 in words is "one billion, four hundred forty-five million, five hundred seventy-two thousand, nine hundred seventy-nine".