197122807 has 16 divisors (see below), whose sum is σ = 228674880. Its totient is φ = 166434048.

The previous prime is 197122787. The next prime is 197122819. The reversal of 197122807 is 708221791.

It is a cyclic number.

It is not a de Polignac number, because 197122807 - 2¹⁵ = 197090039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197122007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246933 + ... + 247729.

It is an arithmetic number, because the mean of its divisors is an integer number (14292180).

Almost surely, 2^197122807 is an apocalyptic number.

197122807 is a deficient number, since it is larger than the sum of its proper divisors (31552073).

197122807 is an equidigital number, since it uses as much as digits as its factorization.

197122807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 197122807 is about 14040.0429842647. The cubic root of 197122807 is about 581.9856703801.

The spelling of 197122807 in words is "one hundred ninety-seven million, one hundred twenty-two thousand, eight hundred seven".