153445813 has 2 divisors, whose sum is σ = 153445814. Its totient is φ = 153445812.

The previous prime is 153445807. The next prime is 153445823. The reversal of 153445813 is 318544351.

153445813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147695409 + 5750404 = 12153^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 153445813 - 2¹⁷ = 153314741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153445823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76722906 + 76722907.

It is an arithmetic number, because the mean of its divisors is an integer number (76722907).

Almost surely, 2^153445813 is an apocalyptic number.

It is an amenable number.

153445813 is a deficient number, since it is larger than the sum of its proper divisors (1).

153445813 is an equidigital number, since it uses as much as digits as its factorization.

153445813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 34.

The square root of 153445813 is about 12387.3246909896. The cubic root of 153445813 is about 535.3671024008.

The spelling of 153445813 in words is "one hundred fifty-three million, four hundred forty-five thousand, eight hundred thirteen".