845016431 has 16 divisors (see below), whose sum is σ = 1038197760. Its totient is φ = 671574240.

The previous prime is 845016421. The next prime is 845016449. The reversal of 845016431 is 134610548.

It is a cyclic number.

It is not a de Polignac number, because 845016431 - 2²² = 840822127 is a prime.

It is a super-2 number, since 2×845016431² = 1428105537319955522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845016421) 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, 61340 + ... + 73841.

It is an arithmetic number, because the mean of its divisors is an integer number (64887360).

Almost surely, 2^845016431 is an apocalyptic number.

845016431 is a deficient number, since it is larger than the sum of its proper divisors (193181329).

845016431 is a wasteful number, since it uses less digits than its factorization.

845016431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135254.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 845016431 is about 29069.1663279152. The cubic root of 845016431 is about 945.4133223635.

Adding to 845016431 its reverse (134610548), we get a palindrome (979626979).

The spelling of 845016431 in words is "eight hundred forty-five million, sixteen thousand, four hundred thirty-one".