153478813 has 2 divisors, whose sum is σ = 153478814. Its totient is φ = 153478812.

The previous prime is 153478807. The next prime is 153478823. The reversal of 153478813 is 318874351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96294969 + 57183844 = 9813^2 + 7562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153478813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153478823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76739406 + 76739407.

It is an arithmetic number, because the mean of its divisors is an integer number (76739407).

Almost surely, 2^153478813 is an apocalyptic number.

It is an amenable number.

153478813 is a deficient number, since it is larger than the sum of its proper divisors (1).

153478813 is an equidigital number, since it uses as much as digits as its factorization.

153478813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 153478813 is about 12388.6566261238. The cubic root of 153478813 is about 535.4054782672.

The spelling of 153478813 in words is "one hundred fifty-three million, four hundred seventy-eight thousand, eight hundred thirteen".