442148051 has 2 divisors, whose sum is σ = 442148052. Its totient is φ = 442148050.

The previous prime is 442148041. The next prime is 442148081. The reversal of 442148051 is 150841244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442148051 - 2⁶ = 442147987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (442148041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221074025 + 221074026.

It is an arithmetic number, because the mean of its divisors is an integer number (221074026).

Almost surely, 2^442148051 is an apocalyptic number.

442148051 is a deficient number, since it is larger than the sum of its proper divisors (1).

442148051 is an equidigital number, since it uses as much as digits as its factorization.

442148051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 442148051 is about 21027.3167807973. The cubic root of 442148051 is about 761.8262009964.

Adding to 442148051 its reverse (150841244), we get a palindrome (592989295).

The spelling of 442148051 in words is "four hundred forty-two million, one hundred forty-eight thousand, fifty-one".