44142547 has 2 divisors, whose sum is σ = 44142548. Its totient is φ = 44142546.

The previous prime is 44142521. The next prime is 44142551. The reversal of 44142547 is 74524144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44142547 is a prime.

It is not a weakly prime, because it can be changed into another prime (44142247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22071273 + 22071274.

It is an arithmetic number, because the mean of its divisors is an integer number (22071274).

Almost surely, 2^44142547 is an apocalyptic number.

44142547 is a deficient number, since it is larger than the sum of its proper divisors (1).

44142547 is an equidigital number, since it uses as much as digits as its factorization.

44142547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 31.

The square root of 44142547 is about 6643.9857766254. The cubic root of 44142547 is about 353.4156654189.

The spelling of 44142547 in words is "forty-four million, one hundred forty-two thousand, five hundred forty-seven".