45978167 has 2 divisors, whose sum is σ = 45978168. Its totient is φ = 45978166.

The previous prime is 45978143. The next prime is 45978187. The reversal of 45978167 is 76187954.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45978167 is a prime.

It is a super-2 number, since 2×45978167² = 4227983681359778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45978187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22989083 + 22989084.

It is an arithmetic number, because the mean of its divisors is an integer number (22989084).

Almost surely, 2^45978167 is an apocalyptic number.

45978167 is a deficient number, since it is larger than the sum of its proper divisors (1).

45978167 is an equidigital number, since it uses as much as digits as its factorization.

45978167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 45978167 is about 6780.7202419802. The cubic root of 45978167 is about 358.2480906784.

The spelling of 45978167 in words is "forty-five million, nine hundred seventy-eight thousand, one hundred sixty-seven".