45429191 has 2 divisors, whose sum is σ = 45429192. Its totient is φ = 45429190.

The previous prime is 45429179. The next prime is 45429193. The reversal of 45429191 is 19192454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45429191 is a prime.

It is a super-2 number, since 2×45429191² = 4127622789828962, which contains 22 as substring.

Together with 45429193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45429193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22714595 + 22714596.

It is an arithmetic number, because the mean of its divisors is an integer number (22714596).

Almost surely, 2^45429191 is an apocalyptic number.

45429191 is a deficient number, since it is larger than the sum of its proper divisors (1).

45429191 is an equidigital number, since it uses as much as digits as its factorization.

45429191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 45429191 is about 6740.1180256728. The cubic root of 45429191 is about 356.8165592158.

The spelling of 45429191 in words is "forty-five million, four hundred twenty-nine thousand, one hundred ninety-one".