1941081515 has 8 divisors (see below), whose sum is σ = 2451892560. Its totient is φ = 1471135392.

The previous prime is 1941081511. The next prime is 1941081517. The reversal of 1941081515 is 5151801491.

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

It is a cyclic number.

It is not a de Polignac number, because 1941081515 - 2² = 1941081511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1941081511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10216124 + ... + 10216313.

It is an arithmetic number, because the mean of its divisors is an integer number (306486570).

Almost surely, 2^1941081515 is an apocalyptic number.

1941081515 is a deficient number, since it is larger than the sum of its proper divisors (510811045).

1941081515 is a wasteful number, since it uses less digits than its factorization.

1941081515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20432461.

The product of its (nonzero) digits is 7200, while the sum is 35.

The square root of 1941081515 is about 44057.7066470782. The cubic root of 1941081515 is about 1247.4254240877.

The spelling of 1941081515 in words is "one billion, nine hundred forty-one million, eighty-one thousand, five hundred fifteen".