442150031 has 2 divisors, whose sum is σ = 442150032. Its totient is φ = 442150030.

The previous prime is 442150019. The next prime is 442150039. The reversal of 442150031 is 130051244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442150031 - 2¹⁴ = 442133647 is a prime.

It is a super-2 number, since 2×442150031² = 390993299826601922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 442149985 and 442150012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442150039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221075015 + 221075016.

It is an arithmetic number, because the mean of its divisors is an integer number (221075016).

Almost surely, 2^442150031 is an apocalyptic number.

442150031 is a deficient number, since it is larger than the sum of its proper divisors (1).

442150031 is an equidigital number, since it uses as much as digits as its factorization.

442150031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 442150031 is about 21027.3638623580. The cubic root of 442150031 is about 761.8273381824.

The spelling of 442150031 in words is "four hundred forty-two million, one hundred fifty thousand, thirty-one".