1810983142 has 8 divisors (see below), whose sum is σ = 2749203576. Its totient is φ = 894581952.

The previous prime is 1810983077. The next prime is 1810983149. The reversal of 1810983142 is 2413890181.

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 (1810983149) 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, 5454603 + ... + 5454934.

It is an arithmetic number, because the mean of its divisors is an integer number (343650447).

Almost surely, 2^1810983142 is an apocalyptic number.

1810983142 is a deficient number, since it is larger than the sum of its proper divisors (938220434).

1810983142 is a wasteful number, since it uses less digits than its factorization.

1810983142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10909622.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1810983142 is about 42555.6475922997. The cubic root of 1810983142 is about 1218.9095205196.

The spelling of 1810983142 in words is "one billion, eight hundred ten million, nine hundred eighty-three thousand, one hundred forty-two".