2451145237 has 2 divisors, whose sum is σ = 2451145238. Its totient is φ = 2451145236.

The previous prime is 2451145223. The next prime is 2451145241. The reversal of 2451145237 is 7325411542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1920718276 + 530426961 = 43826^2 + 23031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2451145237 is a prime.

It is a super-2 number, since 2×2451145237² = 12016225945735572338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2451145267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225572618 + 1225572619.

It is an arithmetic number, because the mean of its divisors is an integer number (1225572619).

Almost surely, 2^2451145237 is an apocalyptic number.

It is an amenable number.

2451145237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451145237 is an equidigital number, since it uses as much as digits as its factorization.

2451145237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 34.

The square root of 2451145237 is about 49509.0419721489. The cubic root of 2451145237 is about 1348.3097707334.

Adding to 2451145237 its reverse (7325411542), we get a palindrome (9776556779).

The spelling of 2451145237 in words is "two billion, four hundred fifty-one million, one hundred forty-five thousand, two hundred thirty-seven".