45143261 has 2 divisors, whose sum is σ = 45143262. Its totient is φ = 45143260.

The previous prime is 45143251. The next prime is 45143269. The reversal of 45143261 is 16234154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34456900 + 10686361 = 5870^2 + 3269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45143261 is a prime.

It is equal to p_2726333 and since 45143261 and 2726333 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45143261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45143269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571630 + 22571631.

It is an arithmetic number, because the mean of its divisors is an integer number (22571631).

Almost surely, 2^45143261 is an apocalyptic number.

It is an amenable number.

45143261 is a deficient number, since it is larger than the sum of its proper divisors (1).

45143261 is an equidigital number, since it uses as much as digits as its factorization.

45143261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 45143261 is about 6718.8734918884. The cubic root of 45143261 is about 356.0663854864.

The spelling of 45143261 in words is "forty-five million, one hundred forty-three thousand, two hundred sixty-one".