71487151 has 8 divisors (see below), whose sum is σ = 74688480. Its totient is φ = 68293632.

The previous prime is 71487137. The next prime is 71487161. The reversal of 71487151 is 15178417.

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-71487151 is a prime.

It is a super-2 number, since 2×71487151² = 10220825516193602, 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 (71487121) 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, 24591 + ... + 27343.

It is an arithmetic number, because the mean of its divisors is an integer number (9336060).

Almost surely, 2^71487151 is an apocalyptic number.

71487151 is a deficient number, since it is larger than the sum of its proper divisors (3201329).

71487151 is a wasteful number, since it uses less digits than its factorization.

71487151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905.

The product of its digits is 7840, while the sum is 34.

The square root of 71487151 is about 8455.0074512090. The cubic root of 71487151 is about 415.0266610829.

The spelling of 71487151 in words is "seventy-one million, four hundred eighty-seven thousand, one hundred fifty-one".