71061901 has 8 divisors (see below), whose sum is σ = 72417600. Its totient is φ = 69711360.

The previous prime is 71061899. The next prime is 71061911. The reversal of 71061901 is 10916017.

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 71061901 - 2¹ = 71061899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71061911) 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, 36880 + ... + 38758.

It is an arithmetic number, because the mean of its divisors is an integer number (9052200).

Almost surely, 2^71061901 is an apocalyptic number.

It is an amenable number.

71061901 is a deficient number, since it is larger than the sum of its proper divisors (1355699).

71061901 is a wasteful number, since it uses less digits than its factorization.

71061901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 71061901 is about 8429.8221214922. The cubic root of 71061901 is about 414.2020783718.

Adding to 71061901 its reverse (10916017), we get a palindrome (81977918).

The spelling of 71061901 in words is "seventy-one million, sixty-one thousand, nine hundred one".