162770749 has 2 divisors, whose sum is σ = 162770750. Its totient is φ = 162770748.

The previous prime is 162770717. The next prime is 162770761. The reversal of 162770749 is 947077261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149940025 + 12830724 = 12245^2 + 3582^2 .

It is a cyclic number.

It is not a de Polignac number, because 162770749 - 2⁵ = 162770717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162770449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81385374 + 81385375.

It is an arithmetic number, because the mean of its divisors is an integer number (81385375).

Almost surely, 2^162770749 is an apocalyptic number.

It is an amenable number.

162770749 is a deficient number, since it is larger than the sum of its proper divisors (1).

162770749 is an equidigital number, since it uses as much as digits as its factorization.

162770749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 162770749 is about 12758.1640136816. The cubic root of 162770749 is about 545.9993436551. Note that the first 3 decimals are identical.

The spelling of 162770749 in words is "one hundred sixty-two million, seven hundred seventy thousand, seven hundred forty-nine".