800161507 has 2 divisors, whose sum is σ = 800161508. Its totient is φ = 800161506.

The previous prime is 800161489. The next prime is 800161529. The reversal of 800161507 is 705161008.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800161507 - 2⁷ = 800161379 is a prime.

It is a super-2 number, since 2×800161507² = 1280516874569022098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (800161547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400080753 + 400080754.

It is an arithmetic number, because the mean of its divisors is an integer number (400080754).

Almost surely, 2^800161507 is an apocalyptic number.

800161507 is a deficient number, since it is larger than the sum of its proper divisors (1).

800161507 is an equidigital number, since it uses as much as digits as its factorization.

800161507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 800161507 is about 28287.1261707512. The cubic root of 800161507 is about 928.3802332764.

The spelling of 800161507 in words is "eight hundred million, one hundred sixty-one thousand, five hundred seven".