1985147341 has 16 divisors (see below), whose sum is σ = 2283932160. Its totient is φ = 1712931840.

The previous prime is 1985147299. The next prime is 1985147363. The reversal of 1985147341 is 1437415891.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1985147341 - 2¹⁷ = 1985016269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985147741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89116 + ... + 109141.

It is an arithmetic number, because the mean of its divisors is an integer number (142745760).

Almost surely, 2^1985147341 is an apocalyptic number.

It is an amenable number.

1985147341 is a deficient number, since it is larger than the sum of its proper divisors (298784819).

1985147341 is a wasteful number, since it uses less digits than its factorization.

1985147341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198324.

The product of its digits is 120960, while the sum is 43.

The square root of 1985147341 is about 44554.9923240932. The cubic root of 1985147341 is about 1256.7944343618.

The spelling of 1985147341 in words is "one billion, nine hundred eighty-five million, one hundred forty-seven thousand, three hundred forty-one".