1816262125 has 32 divisors (see below), whose sum is σ = 2329606656. Its totient is φ = 1413083200.

The previous prime is 1816262111. The next prime is 1816262213. The reversal of 1816262125 is 5212626181.

It is a happy number.

It is not a de Polignac number, because 1816262125 - 2¹⁹ = 1815737837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1015482 + ... + 1017268.

It is an arithmetic number, because the mean of its divisors is an integer number (72800208).

Almost surely, 2^1816262125 is an apocalyptic number.

It is an amenable number.

1816262125 is a deficient number, since it is larger than the sum of its proper divisors (513344531).

1816262125 is a wasteful number, since it uses less digits than its factorization.

1816262125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2012 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 1816262125 is about 42617.6269283028. The cubic root of 1816262125 is about 1220.0927379562.

The spelling of 1816262125 in words is "one billion, eight hundred sixteen million, two hundred sixty-two thousand, one hundred twenty-five".