45242279 has 2 divisors, whose sum is σ = 45242280. Its totient is φ = 45242278.

The previous prime is 45242251. The next prime is 45242293. The reversal of 45242279 is 97224254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45242279 - 2¹⁶ = 45176743 is a prime.

It is a super-2 number, since 2×45242279² = 4093727618227682, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45242209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22621139 + 22621140.

It is an arithmetic number, because the mean of its divisors is an integer number (22621140).

Almost surely, 2^45242279 is an apocalyptic number.

45242279 is a deficient number, since it is larger than the sum of its proper divisors (1).

45242279 is an equidigital number, since it uses as much as digits as its factorization.

45242279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 45242279 is about 6726.2381016434. The cubic root of 45242279 is about 356.3265294088.

The spelling of 45242279 in words is "forty-five million, two hundred forty-two thousand, two hundred seventy-nine".