1214746981 has 8 divisors (see below), whose sum is σ = 1388586240. Its totient is φ = 1040983728.

The previous prime is 1214746979. The next prime is 1214746991. The reversal of 1214746981 is 1896474121.

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 1214746981 - 2¹ = 1214746979 is a prime.

It is a super-2 number, since 2×1214746981² = 2951220455697228722, 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 (1214746901) 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, 20820 + ... + 53506.

It is an arithmetic number, because the mean of its divisors is an integer number (173573280).

Almost surely, 2^1214746981 is an apocalyptic number.

It is an amenable number.

1214746981 is a deficient number, since it is larger than the sum of its proper divisors (173839259).

1214746981 is an equidigital number, since it uses as much as digits as its factorization.

1214746981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38003.

The product of its digits is 96768, while the sum is 43.

The square root of 1214746981 is about 34853.2205255124. The cubic root of 1214746981 is about 1066.9939152923.

The spelling of 1214746981 in words is "one billion, two hundred fourteen million, seven hundred forty-six thousand, nine hundred eighty-one".