154268813 has 2 divisors, whose sum is σ = 154268814. Its totient is φ = 154268812.

The previous prime is 154268791. The next prime is 154268831. The reversal of 154268813 is 318862451.

154268813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (154268831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144048004 + 10220809 = 12002^2 + 3197^2 .

It is a cyclic number.

It is not a de Polignac number, because 154268813 - 2⁶ = 154268749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154268833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77134406 + 77134407.

It is an arithmetic number, because the mean of its divisors is an integer number (77134407).

Almost surely, 2^154268813 is an apocalyptic number.

It is an amenable number.

154268813 is a deficient number, since it is larger than the sum of its proper divisors (1).

154268813 is an equidigital number, since it uses as much as digits as its factorization.

154268813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 38.

The square root of 154268813 is about 12420.4997081438. The cubic root of 154268813 is about 536.3225357440.

The spelling of 154268813 in words is "one hundred fifty-four million, two hundred sixty-eight thousand, eight hundred thirteen".