71614981 has 8 divisors (see below), whose sum is σ = 73261440. Its totient is φ = 69973728.

The previous prime is 71614927. The next prime is 71615021. The reversal of 71614981 is 18941617.

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 71614981 - 2¹⁵ = 71582213 is a prime.

It is a super-2 number, since 2×71614981² = 10257411007260722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71614981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71614381) 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, 43705 + ... + 45313.

It is an arithmetic number, because the mean of its divisors is an integer number (9157680).

Almost surely, 2^71614981 is an apocalyptic number.

It is an amenable number.

71614981 is a deficient number, since it is larger than the sum of its proper divisors (1646459).

71614981 is a wasteful number, since it uses less digits than its factorization.

71614981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603.

The product of its digits is 12096, while the sum is 37.

The square root of 71614981 is about 8462.5635005003. The cubic root of 71614981 is about 415.2738909068.

The spelling of 71614981 in words is "seventy-one million, six hundred fourteen thousand, nine hundred eighty-one".