71496381 has 8 divisors (see below), whose sum is σ = 103994784. Its totient is φ = 43331120.

The previous prime is 71496349. The next prime is 71496389. The reversal of 71496381 is 18369417.

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 71496381 - 2⁵ = 71496349 is a prime.

It is a super-3 number, since 3×71496381³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71496389) 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, 1083246 + ... + 1083311.

It is an arithmetic number, because the mean of its divisors is an integer number (12999348).

Almost surely, 2^71496381 is an apocalyptic number.

It is an amenable number.

71496381 is a deficient number, since it is larger than the sum of its proper divisors (32498403).

71496381 is a wasteful number, since it uses less digits than its factorization.

71496381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166571.

The product of its digits is 36288, while the sum is 39.

The square root of 71496381 is about 8455.5532639798. The cubic root of 71496381 is about 415.0445222471.

It can be divided in two parts, 7149 and 6381, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 71496381 in words is "seventy-one million, four hundred ninety-six thousand, three hundred eighty-one".