45127919 has 2 divisors, whose sum is σ = 45127920. Its totient is φ = 45127918.

The previous prime is 45127897. The next prime is 45127931. The reversal of 45127919 is 91972154.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45127919 is a prime.

It is a super-2 number, since 2×45127919² = 4073058146541122, 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 (45127939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22563959 + 22563960.

It is an arithmetic number, because the mean of its divisors is an integer number (22563960).

Almost surely, 2^45127919 is an apocalyptic number.

45127919 is a deficient number, since it is larger than the sum of its proper divisors (1).

45127919 is an equidigital number, since it uses as much as digits as its factorization.

45127919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 45127919 is about 6717.7316856213. The cubic root of 45127919 is about 356.0260443640.

The spelling of 45127919 in words is "forty-five million, one hundred twenty-seven thousand, nine hundred nineteen".