162740233 has 2 divisors, whose sum is σ = 162740234. Its totient is φ = 162740232.

The previous prime is 162740209. The next prime is 162740239. The reversal of 162740233 is 332047261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161467849 + 1272384 = 12707^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 162740233 - 2²⁵ = 129185801 is a prime.

It is not a weakly prime, because it can be changed into another prime (162740239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81370116 + 81370117.

It is an arithmetic number, because the mean of its divisors is an integer number (81370117).

Almost surely, 2^162740233 is an apocalyptic number.

It is an amenable number.

162740233 is a deficient number, since it is larger than the sum of its proper divisors (1).

162740233 is an equidigital number, since it uses as much as digits as its factorization.

162740233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 162740233 is about 12756.9680175189. The cubic root of 162740233 is about 545.9652204944.

Adding to 162740233 its reverse (332047261), we get a palindrome (494787494).

The spelling of 162740233 in words is "one hundred sixty-two million, seven hundred forty thousand, two hundred thirty-three".