155431415353013 has 2 divisors, whose sum is σ = 155431415353014. Its totient is φ = 155431415353012.

The previous prime is 155431415352991. The next prime is 155431415353037. The reversal of 155431415353013 is 310353514134551.

155431415353013 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., 150593958218929 + 4837457134084 = 12271673^2 + 2199422^2 .

It is a cyclic number.

It is not a de Polignac number, because 155431415353013 - 2²⁴ = 155431398575797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155431415353073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77715707676506 + 77715707676507.

It is an arithmetic number, because the mean of its divisors is an integer number (77715707676507).

Almost surely, 2^{155431415353013} is an apocalyptic number.

It is an amenable number.

155431415353013 is a deficient number, since it is larger than the sum of its proper divisors (1).

155431415353013 is an equidigital number, since it uses as much as digits as its factorization.

155431415353013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810000, while the sum is 44.

Adding to 155431415353013 its reverse (310353514134551), we get a palindrome (465784929487564).

The spelling of 155431415353013 in words is "one hundred fifty-five trillion, four hundred thirty-one billion, four hundred fifteen million, three hundred fifty-three thousand, thirteen".