45124819 has 2 divisors, whose sum is σ = 45124820. Its totient is φ = 45124818.

The previous prime is 45124777. The next prime is 45124823. The reversal of 45124819 is 91842154.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45124819 - 2¹³ = 45116627 is a prime.

It is a super-2 number, since 2×45124819² = 4072498579565522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45184819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562409 + 22562410.

It is an arithmetic number, because the mean of its divisors is an integer number (22562410).

Almost surely, 2^45124819 is an apocalyptic number.

45124819 is a deficient number, since it is larger than the sum of its proper divisors (1).

45124819 is an equidigital number, since it uses as much as digits as its factorization.

45124819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 45124819 is about 6717.5009490137. The cubic root of 45124819 is about 356.0178919384.

The spelling of 45124819 in words is "forty-five million, one hundred twenty-four thousand, eight hundred nineteen".