45143971 has 2 divisors, whose sum is σ = 45143972. Its totient is φ = 45143970.

The previous prime is 45143957. The next prime is 45144007. The reversal of 45143971 is 17934154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45143971 - 2⁵ = 45143939 is a prime.

It is equal to p_2726377 and since 45143971 and 2726377 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 (45143921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571985 + 22571986.

It is an arithmetic number, because the mean of its divisors is an integer number (22571986).

Almost surely, 2^45143971 is an apocalyptic number.

45143971 is a deficient number, since it is larger than the sum of its proper divisors (1).

45143971 is an equidigital number, since it uses as much as digits as its factorization.

45143971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 45143971 is about 6718.9263279188. The cubic root of 45143971 is about 356.0682521792.

The spelling of 45143971 in words is "forty-five million, one hundred forty-three thousand, nine hundred seventy-one".