1373153447 has 2 divisors, whose sum is σ = 1373153448. Its totient is φ = 1373153446.

The previous prime is 1373153399. The next prime is 1373153459. The reversal of 1373153447 is 7443513731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1373153447 is a prime.

It is a super-4 number, since 4×1373153447⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1373153447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373158447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686576723 + 686576724.

It is an arithmetic number, because the mean of its divisors is an integer number (686576724).

Almost surely, 2^1373153447 is an apocalyptic number.

1373153447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373153447 is an equidigital number, since it uses as much as digits as its factorization.

1373153447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The square root of 1373153447 is about 37056.0851548028. The cubic root of 1373153447 is about 1111.4920408191.

The spelling of 1373153447 in words is "one billion, three hundred seventy-three million, one hundred fifty-three thousand, four hundred forty-seven".