2081519534 has 8 divisors (see below), whose sum is σ = 3123085368. Its totient is φ = 1040491080.

The previous prime is 2081519507. The next prime is 2081519537. The reversal of 2081519534 is 4359151802.

It is a happy number.

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 (2081519537) 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, 124517 + ... + 140240.

It is an arithmetic number, because the mean of its divisors is an integer number (390385671).

Almost surely, 2^2081519534 is an apocalyptic number.

2081519534 is a deficient number, since it is larger than the sum of its proper divisors (1041565834).

2081519534 is a wasteful number, since it uses less digits than its factorization.

2081519534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268690.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 2081519534 is about 45623.6729560433. The cubic root of 2081519534 is about 1276.8116312954.

The spelling of 2081519534 in words is "two billion, eighty-one million, five hundred nineteen thousand, five hundred thirty-four".