162157841 has 2 divisors, whose sum is σ = 162157842. Its totient is φ = 162157840.

The previous prime is 162157777. The next prime is 162157903. The reversal of 162157841 is 148751261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156775441 + 5382400 = 12521^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 162157841 - 2⁶ = 162157777 is a prime.

It is not a weakly prime, because it can be changed into another prime (162127841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81078920 + 81078921.

It is an arithmetic number, because the mean of its divisors is an integer number (81078921).

Almost surely, 2^162157841 is an apocalyptic number.

It is an amenable number.

162157841 is a deficient number, since it is larger than the sum of its proper divisors (1).

162157841 is an equidigital number, since it uses as much as digits as its factorization.

162157841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 35.

The square root of 162157841 is about 12734.1211318253. The cubic root of 162157841 is about 545.3131673749.

The spelling of 162157841 in words is "one hundred sixty-two million, one hundred fifty-seven thousand, eight hundred forty-one".