162770819 has 2 divisors, whose sum is σ = 162770820. Its totient is φ = 162770818.

The previous prime is 162770761. The next prime is 162770821. The reversal of 162770819 is 918077261.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162770819 is a prime.

It is a super-2 number, since 2×162770819² = 52988679035861522, which contains 22 as substring.

Together with 162770821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (162770879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81385409 + 81385410.

It is an arithmetic number, because the mean of its divisors is an integer number (81385410).

Almost surely, 2^162770819 is an apocalyptic number.

162770819 is a deficient number, since it is larger than the sum of its proper divisors (1).

162770819 is an equidigital number, since it uses as much as digits as its factorization.

162770819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 162770819 is about 12758.1667570227. The cubic root of 162770819 is about 545.9994219246. Note that the first 3 decimals are identical.

The spelling of 162770819 in words is "one hundred sixty-two million, seven hundred seventy thousand, eight hundred nineteen".