45143251 has 2 divisors, whose sum is σ = 45143252. Its totient is φ = 45143250.

The previous prime is 45143237. The next prime is 45143261. The reversal of 45143251 is 15234154.

It is a happy number.

45143251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45143251 - 2⁷ = 45143123 is a prime.

It is a super-2 number, since 2×45143251² = 4075826221698002, which contains 22 as substring.

It is equal to p_2726332 and since 45143251 and 2726332 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45143261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571625 + 22571626.

It is an arithmetic number, because the mean of its divisors is an integer number (22571626).

Almost surely, 2^45143251 is an apocalyptic number.

45143251 is a deficient number, since it is larger than the sum of its proper divisors (1).

45143251 is an equidigital number, since it uses as much as digits as its factorization.

45143251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 45143251 is about 6718.8727477159. The cubic root of 45143251 is about 356.0663591948.

The spelling of 45143251 in words is "forty-five million, one hundred forty-three thousand, two hundred fifty-one".