161272883 has 2 divisors, whose sum is σ = 161272884. Its totient is φ = 161272882.

The previous prime is 161272877. The next prime is 161272949. The reversal of 161272883 is 388272161.

161272883 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 is a cyclic number.

It is not a de Polignac number, because 161272883 - 2¹² = 161268787 is a prime.

It is a super-2 number, since 2×161272883² = 52017885582263378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161272823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80636441 + 80636442.

It is an arithmetic number, because the mean of its divisors is an integer number (80636442).

Almost surely, 2^161272883 is an apocalyptic number.

161272883 is a deficient number, since it is larger than the sum of its proper divisors (1).

161272883 is an equidigital number, since it uses as much as digits as its factorization.

161272883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 161272883 is about 12699.3260844818. The cubic root of 161272883 is about 544.3193624251.

The spelling of 161272883 in words is "one hundred sixty-one million, two hundred seventy-two thousand, eight hundred eighty-three".