45971251 has 2 divisors, whose sum is σ = 45971252. Its totient is φ = 45971250.

The previous prime is 45971243. The next prime is 45971287. The reversal of 45971251 is 15217954.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45971251 - 2³ = 45971243 is a prime.

It is a super-2 number, since 2×45971251² = 4226711837010002, which contains 22 as substring.

It is equal to p_2773429 and since 45971251 and 2773429 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 (45971201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22985625 + 22985626.

It is an arithmetic number, because the mean of its divisors is an integer number (22985626).

Almost surely, 2^45971251 is an apocalyptic number.

45971251 is a deficient number, since it is larger than the sum of its proper divisors (1).

45971251 is an equidigital number, since it uses as much as digits as its factorization.

45971251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 45971251 is about 6780.2102474776. The cubic root of 45971251 is about 358.2301273116.

The spelling of 45971251 in words is "forty-five million, nine hundred seventy-one thousand, two hundred fifty-one".