2145252337 has 2 divisors, whose sum is σ = 2145252338. Its totient is φ = 2145252336.

The previous prime is 2145252313. The next prime is 2145252367. The reversal of 2145252337 is 7332525412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2003547121 + 141705216 = 44761^2 + 11904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145252337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145252367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072626168 + 1072626169.

It is an arithmetic number, because the mean of its divisors is an integer number (1072626169).

Almost surely, 2^2145252337 is an apocalyptic number.

It is an amenable number.

2145252337 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145252337 is an equidigital number, since it uses as much as digits as its factorization.

2145252337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 2145252337 is about 46316.8688168792. The cubic root of 2145252337 is about 1289.7121600038.

Adding to 2145252337 its reverse (7332525412), we get a palindrome (9477777749).

The spelling of 2145252337 in words is "two billion, one hundred forty-five million, two hundred fifty-two thousand, three hundred thirty-seven".