1818226526 has 8 divisors (see below), whose sum is σ = 2727769224. Its totient is φ = 908970120.

The previous prime is 1818226523. The next prime is 1818226561. The reversal of 1818226526 is 6256228181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818226523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54920 + ... + 81563.

It is an arithmetic number, because the mean of its divisors is an integer number (340971153).

Almost surely, 2^1818226526 is an apocalyptic number.

1818226526 is a deficient number, since it is larger than the sum of its proper divisors (909542698).

1818226526 is a wasteful number, since it uses less digits than its factorization.

1818226526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143146.

The product of its digits is 92160, while the sum is 41.

The square root of 1818226526 is about 42640.6675135369. The cubic root of 1818226526 is about 1220.5324483191.

The spelling of 1818226526 in words is "one billion, eight hundred eighteen million, two hundred twenty-six thousand, five hundred twenty-six".