45961819 has 2 divisors, whose sum is σ = 45961820. Its totient is φ = 45961818.

The previous prime is 45961787. The next prime is 45961837. The reversal of 45961819 is 91816954.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45961819 - 2⁵ = 45961787 is a prime.

It is a super-2 number, since 2×45961819² = 4224977611577522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45961849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22980909 + 22980910.

It is an arithmetic number, because the mean of its divisors is an integer number (22980910).

Almost surely, 2^45961819 is an apocalyptic number.

45961819 is a deficient number, since it is larger than the sum of its proper divisors (1).

45961819 is an equidigital number, since it uses as much as digits as its factorization.

45961819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The square root of 45961819 is about 6779.5146581448. The cubic root of 45961819 is about 358.2056260738.

The spelling of 45961819 in words is "forty-five million, nine hundred sixty-one thousand, eight hundred nineteen".