45922381 has 2 divisors, whose sum is σ = 45922382. Its totient is φ = 45922380.

The previous prime is 45922369. The next prime is 45922397. The reversal of 45922381 is 18322954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39501225 + 6421156 = 6285^2 + 2534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45922381 is a prime.

It is a super-2 number, since 2×45922381² = 4217730153418322, which contains 22 as substring.

It is equal to p_2770693 and since 45922381 and 2770693 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45922301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22961190 + 22961191.

It is an arithmetic number, because the mean of its divisors is an integer number (22961191).

Almost surely, 2^45922381 is an apocalyptic number.

It is an amenable number.

45922381 is a deficient number, since it is larger than the sum of its proper divisors (1).

45922381 is an equidigital number, since it uses as much as digits as its factorization.

45922381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 45922381 is about 6776.6054186444. The cubic root of 45922381 is about 358.1031427786.

The spelling of 45922381 in words is "forty-five million, nine hundred twenty-two thousand, three hundred eighty-one".