1611982146 has 8 divisors (see below), whose sum is σ = 3223964304. Its totient is φ = 537327380.

The previous prime is 1611982103. The next prime is 1611982147. The reversal of 1611982146 is 6412891161.

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

1611982146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1611982147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134331840 + ... + 134331851.

It is an arithmetic number, because the mean of its divisors is an integer number (402995538).

Almost surely, 2^1611982146 is an apocalyptic number.

1611982146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1611982146 is a wasteful number, since it uses less digits than its factorization.

1611982146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268663696.

The product of its digits is 20736, while the sum is 39.

The square root of 1611982146 is about 40149.4974563817. The cubic root of 1611982146 is about 1172.5195044362.

The spelling of 1611982146 in words is "one billion, six hundred eleven million, nine hundred eighty-two thousand, one hundred forty-six".