45191953 has 2 divisors, whose sum is σ = 45191954. Its totient is φ = 45191952.

The previous prime is 45191921. The next prime is 45191959. The reversal of 45191953 is 35919154.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39589264 + 5602689 = 6292^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 45191953 - 2⁵ = 45191921 is a prime.

It is not a weakly prime, because it can be changed into another prime (45191959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22595976 + 22595977.

It is an arithmetic number, because the mean of its divisors is an integer number (22595977).

Almost surely, 2^45191953 is an apocalyptic number.

It is an amenable number.

45191953 is a deficient number, since it is larger than the sum of its proper divisors (1).

45191953 is an equidigital number, since it uses as much as digits as its factorization.

45191953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 37.

The square root of 45191953 is about 6722.4960394187. The cubic root of 45191953 is about 356.1943584794.

The spelling of 45191953 in words is "forty-five million, one hundred ninety-one thousand, nine hundred fifty-three".