45951181 has 2 divisors, whose sum is σ = 45951182. Its totient is φ = 45951180.

The previous prime is 45951179. The next prime is 45951193. The reversal of 45951181 is 18115954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42693156 + 3258025 = 6534^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 45951181 - 2¹ = 45951179 is a prime.

It is a super-2 number, since 2×45951181² = 4223022070589522, which contains 22 as substring.

Together with 45951179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45951121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22975590 + 22975591.

It is an arithmetic number, because the mean of its divisors is an integer number (22975591).

Almost surely, 2^45951181 is an apocalyptic number.

It is an amenable number.

45951181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45951181 is an equidigital number, since it uses as much as digits as its factorization.

45951181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 34.

The square root of 45951181 is about 6778.7300433046. The cubic root of 45951181 is about 358.1779880214.

It can be divided in two parts, 4595 and 1181, that added together give a square (5776 = 76²).

The spelling of 45951181 in words is "forty-five million, nine hundred fifty-one thousand, one hundred eighty-one".