45148619 has 2 divisors, whose sum is σ = 45148620. Its totient is φ = 45148618.

The previous prime is 45148613. The next prime is 45148637. The reversal of 45148619 is 91684154.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45148619 is a prime.

It is a super-2 number, since 2×45148619² = 4076795595214322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45148613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22574309 + 22574310.

It is an arithmetic number, because the mean of its divisors is an integer number (22574310).

Almost surely, 2^45148619 is an apocalyptic number.

45148619 is a deficient number, since it is larger than the sum of its proper divisors (1).

45148619 is an equidigital number, since it uses as much as digits as its factorization.

45148619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 45148619 is about 6719.2722076130. The cubic root of 45148619 is about 356.0804719611.

The spelling of 45148619 in words is "forty-five million, one hundred forty-eight thousand, six hundred nineteen".