1818101532 has 48 divisors (see below), whose sum is σ = 4588603040. Its totient is φ = 556962048.

The previous prime is 1818101443. The next prime is 1818101543. The reversal of 1818101532 is 2351018181.

It is a self number, because there is not a number n which added to its sum of digits gives 1818101532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10278 + ... + 61170.

Almost surely, 2^1818101532 is an apocalyptic number.

1818101532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1818101532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294301520).

1818101532 is an abundant number, since it is smaller than the sum of its proper divisors (2770501508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1818101532 is a wasteful number, since it uses less digits than its factorization.

1818101532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51142 (or 51140 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 1818101532 is about 42639.2018217977. The cubic root of 1818101532 is about 1220.5044791733.

The spelling of 1818101532 in words is "one billion, eight hundred eighteen million, one hundred one thousand, five hundred thirty-two".