842190531 has 16 divisors (see below), whose sum is σ = 1382056704. Its totient is φ = 444232224.

The previous prime is 842190529. The next prime is 842190539. The reversal of 842190531 is 135091248.

842190531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 842190531 - 2¹ = 842190529 is a prime.

It is a super-2 number, since 2×842190531² = 1418569781012123922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 842190492 and 842190501.

It is not an unprimeable number, because it can be changed into a prime (842190539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542201 + ... + 1542746.

It is an arithmetic number, because the mean of its divisors is an integer number (86378544).

Almost surely, 2^842190531 is an apocalyptic number.

842190531 is a deficient number, since it is larger than the sum of its proper divisors (539866173).

842190531 is a wasteful number, since it uses less digits than its factorization.

842190531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084970.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 842190531 is about 29020.5191373276. The cubic root of 842190531 is about 944.3582631083.

The spelling of 842190531 in words is "eight hundred forty-two million, one hundred ninety thousand, five hundred thirty-one".