918156013 has 2 divisors, whose sum is σ = 918156014. Its totient is φ = 918156012.

The previous prime is 918155983. The next prime is 918156049. The reversal of 918156013 is 310651819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810370089 + 107785924 = 28467^2 + 10382^2 .

It is a cyclic number.

It is not a de Polignac number, because 918156013 - 2²⁹ = 381285101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 918156013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918156413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459078006 + 459078007.

It is an arithmetic number, because the mean of its divisors is an integer number (459078007).

Almost surely, 2^918156013 is an apocalyptic number.

It is an amenable number.

918156013 is a deficient number, since it is larger than the sum of its proper divisors (1).

918156013 is an equidigital number, since it uses as much as digits as its factorization.

918156013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 918156013 is about 30301.0893038518. The cubic root of 918156013 is about 971.9385940790.

The spelling of 918156013 in words is "nine hundred eighteen million, one hundred fifty-six thousand, thirteen".