71401453 has 8 divisors (see below), whose sum is σ = 76520448. Its totient is φ = 66450384.

The previous prime is 71401439. The next prime is 71401471. The reversal of 71401453 is 35410417.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71401453 is a prime.

It is a super-2 number, since 2×71401453² = 10196334981022418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71401403) 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, 41101 + ... + 42802.

It is an arithmetic number, because the mean of its divisors is an integer number (9565056).

Almost surely, 2^71401453 is an apocalyptic number.

It is an amenable number.

71401453 is a deficient number, since it is larger than the sum of its proper divisors (5118995).

71401453 is a wasteful number, since it uses less digits than its factorization.

71401453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83963.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 71401453 is about 8449.9380471102. The cubic root of 71401453 is about 414.8607516563.

The spelling of 71401453 in words is "seventy-one million, four hundred one thousand, four hundred fifty-three".