1813229554 has 16 divisors (see below), whose sum is σ = 2897088768. Its totient is φ = 848172352.

The previous prime is 1813229549. The next prime is 1813229629. The reversal of 1813229554 is 4559223181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153994 + ... + 165349.

It is an arithmetic number, because the mean of its divisors is an integer number (181068048).

Almost surely, 2^1813229554 is an apocalyptic number.

1813229554 is a deficient number, since it is larger than the sum of its proper divisors (1083859214).

1813229554 is a wasteful number, since it uses less digits than its factorization.

1813229554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319529.

The product of its digits is 86400, while the sum is 40.

The square root of 1813229554 is about 42582.0332299903. The cubic root of 1813229554 is about 1219.4133060992.

The spelling of 1813229554 in words is "one billion, eight hundred thirteen million, two hundred twenty-nine thousand, five hundred fifty-four".