2209237157 has 2 divisors, whose sum is σ = 2209237158. Its totient is φ = 2209237156.

The previous prime is 2209237117. The next prime is 2209237201. The reversal of 2209237157 is 7517329022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1692993316 + 516243841 = 41146^2 + 22721^2 .

It is a cyclic number.

It is not a de Polignac number, because 2209237157 - 2²⁶ = 2142128293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2209237157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2209237117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104618578 + 1104618579.

It is an arithmetic number, because the mean of its divisors is an integer number (1104618579).

Almost surely, 2^2209237157 is an apocalyptic number.

It is an amenable number.

2209237157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209237157 is an equidigital number, since it uses as much as digits as its factorization.

2209237157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 2209237157 is about 47002.5228790966. The cubic root of 2209237157 is about 1302.4091729725.

The spelling of 2209237157 in words is "two billion, two hundred nine million, two hundred thirty-seven thousand, one hundred fifty-seven".