1452729869 has 2 divisors, whose sum is σ = 1452729870. Its totient is φ = 1452729868.

The previous prime is 1452729821. The next prime is 1452729877. The reversal of 1452729869 is 9689272541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1342269769 + 110460100 = 36637^2 + 10510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1452729869 is a prime.

It is a super-2 number, since 2×1452729869² = 4220848144569514322, 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 1452729869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1452729809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726364934 + 726364935.

It is an arithmetic number, because the mean of its divisors is an integer number (726364935).

Almost surely, 2^1452729869 is an apocalyptic number.

It is an amenable number.

1452729869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452729869 is an equidigital number, since it uses as much as digits as its factorization.

1452729869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 1452729869 is about 38114.6936102076. The cubic root of 1452729869 is about 1132.5610507886.

The spelling of 1452729869 in words is "one billion, four hundred fifty-two million, seven hundred twenty-nine thousand, eight hundred sixty-nine".