45542839 has 2 divisors, whose sum is σ = 45542840. Its totient is φ = 45542838.

The previous prime is 45542821. The next prime is 45542843. The reversal of 45542839 is 93824554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45542839 - 2⁵ = 45542807 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45542869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22771419 + 22771420.

It is an arithmetic number, because the mean of its divisors is an integer number (22771420).

Almost surely, 2^45542839 is an apocalyptic number.

45542839 is a deficient number, since it is larger than the sum of its proper divisors (1).

45542839 is an equidigital number, since it uses as much as digits as its factorization.

45542839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 45542839 is about 6748.5434724835. The cubic root of 45542839 is about 357.1138549935.

The spelling of 45542839 in words is "forty-five million, five hundred forty-two thousand, eight hundred thirty-nine".