71254151 has 8 divisors (see below), whose sum is σ = 73764864. Its totient is φ = 68756760.

The previous prime is 71254121. The next prime is 71254159. The reversal of 71254151 is 15145217.

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

It is a de Polignac number, because none of the positive numbers 2^k-71254151 is a prime.

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 71254151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71254159) 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, 8246 + ... + 14508.

It is an arithmetic number, because the mean of its divisors is an integer number (9220608).

Almost surely, 2^71254151 is an apocalyptic number.

71254151 is a deficient number, since it is larger than the sum of its proper divisors (2510713).

71254151 is a wasteful number, since it uses less digits than its factorization.

71254151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6661.

The product of its digits is 1400, while the sum is 26.

The square root of 71254151 is about 8441.2173885050. The cubic root of 71254151 is about 414.5752677830.

Adding to 71254151 its reverse (15145217), we get a palindrome (86399368).

The spelling of 71254151 in words is "seventy-one million, two hundred fifty-four thousand, one hundred fifty-one".