2141346981 has 8 divisors (see below), whose sum is σ = 2921527840. Its totient is φ = 1394365392.

The previous prime is 2141346971. The next prime is 2141346997. The reversal of 2141346981 is 1896431412.

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

It is a de Polignac number, because none of the positive numbers 2^k-2141346981 is a prime.

It is a super-2 number, since 2×2141346981² = 9170733786075628722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141346941) 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, 8299666 + ... + 8299923.

It is an arithmetic number, because the mean of its divisors is an integer number (365190980).

Almost surely, 2^2141346981 is an apocalyptic number.

It is an amenable number.

2141346981 is a deficient number, since it is larger than the sum of its proper divisors (780180859).

2141346981 is a wasteful number, since it uses less digits than its factorization.

2141346981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16599635.

The product of its digits is 41472, while the sum is 39.

The square root of 2141346981 is about 46274.6905013961. The cubic root of 2141346981 is about 1288.9290594861.

The spelling of 2141346981 in words is "two billion, one hundred forty-one million, three hundred forty-six thousand, nine hundred eighty-one".