394142241527 has 2 divisors, whose sum is σ = 394142241528. Its totient is φ = 394142241526.

The previous prime is 394142241433. The next prime is 394142241547. The reversal of 394142241527 is 725142241493.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (725142241493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394142241527 - 2⁸ = 394142241271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394142241547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197071120763 + 197071120764.

It is an arithmetic number, because the mean of its divisors is an integer number (197071120764).

Almost surely, 2^394142241527 is an apocalyptic number.

394142241527 is a deficient number, since it is larger than the sum of its proper divisors (1).

394142241527 is an equidigital number, since it uses as much as digits as its factorization.

394142241527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The spelling of 394142241527 in words is "three hundred ninety-four billion, one hundred forty-two million, two hundred forty-one thousand, five hundred twenty-seven".