2285989157 has 2 divisors, whose sum is σ = 2285989158. Its totient is φ = 2285989156.

The previous prime is 2285989129. The next prime is 2285989183. The reversal of 2285989157 is 7519895822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2209846081 + 76143076 = 47009^2 + 8726^2 .

It is a cyclic number.

It is not a de Polignac number, because 2285989157 - 2¹² = 2285985061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2285989117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1142994578 + 1142994579.

It is an arithmetic number, because the mean of its divisors is an integer number (1142994579).

Almost surely, 2^2285989157 is an apocalyptic number.

It is an amenable number.

2285989157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2285989157 is an equidigital number, since it uses as much as digits as its factorization.

2285989157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 56.

The square root of 2285989157 is about 47812.0189596716. The cubic root of 2285989157 is about 1317.3203130898.

The spelling of 2285989157 in words is "two billion, two hundred eighty-five million, nine hundred eighty-nine thousand, one hundred fifty-seven".