151895813 has 2 divisors, whose sum is σ = 151895814. Its totient is φ = 151895812.

The previous prime is 151895789. The next prime is 151895831. The reversal of 151895813 is 318598151.

151895813 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 (151895831) 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., 150970369 + 925444 = 12287^2 + 962^2 .

It is a cyclic number.

It is not a de Polignac number, because 151895813 - 2²⁴ = 135118597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151891813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75947906 + 75947907.

It is an arithmetic number, because the mean of its divisors is an integer number (75947907).

Almost surely, 2^151895813 is an apocalyptic number.

It is an amenable number.

151895813 is a deficient number, since it is larger than the sum of its proper divisors (1).

151895813 is an equidigital number, since it uses as much as digits as its factorization.

151895813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 41.

The square root of 151895813 is about 12324.6019408336. The cubic root of 151895813 is about 533.5583664518.

The spelling of 151895813 in words is "one hundred fifty-one million, eight hundred ninety-five thousand, eight hundred thirteen".