1415672509 has 2 divisors, whose sum is σ = 1415672510. Its totient is φ = 1415672508.

The previous prime is 1415672473. The next prime is 1415672519. The reversal of 1415672509 is 9052765141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959636484 + 456036025 = 30978^2 + 21355^2 .

It is a cyclic number.

It is not a de Polignac number, because 1415672509 - 2⁹ = 1415671997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1415672519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707836254 + 707836255.

It is an arithmetic number, because the mean of its divisors is an integer number (707836255).

Almost surely, 2^1415672509 is an apocalyptic number.

It is an amenable number.

1415672509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415672509 is an equidigital number, since it uses as much as digits as its factorization.

1415672509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 1415672509 is about 37625.4237052555. The cubic root of 1415672509 is about 1122.8479045544.

The spelling of 1415672509 in words is "one billion, four hundred fifteen million, six hundred seventy-two thousand, five hundred nine".