162770813 has 4 divisors (see below), whose sum is σ = 162919488. Its totient is φ = 162622140.

The previous prime is 162770761. The next prime is 162770819. The reversal of 162770813 is 318077261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 162770813 - 2⁶ = 162770749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162770819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72683 + ... + 74888.

It is an arithmetic number, because the mean of its divisors is an integer number (40729872).

Almost surely, 2^162770813 is an apocalyptic number.

It is an amenable number.

162770813 is a deficient number, since it is larger than the sum of its proper divisors (148675).

162770813 is a wasteful number, since it uses less digits than its factorization.

162770813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148674.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 162770813 is about 12758.1665218792. The cubic root of 162770813 is about 545.9994152158. Note that the first 3 decimals are identical.

The spelling of 162770813 in words is "one hundred sixty-two million, seven hundred seventy thousand, eight hundred thirteen".