71249614 has 4 divisors (see below), whose sum is σ = 106874424. Its totient is φ = 35624806.

The previous prime is 71249599. The next prime is 71249621. The reversal of 71249614 is 41694217.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71249614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17812402 + ... + 17812405.

It is an arithmetic number, because the mean of its divisors is an integer number (26718606).

Almost surely, 2^71249614 is an apocalyptic number.

71249614 is a deficient number, since it is larger than the sum of its proper divisors (35624810).

71249614 is a wasteful number, since it uses less digits than its factorization.

71249614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35624809.

The product of its digits is 12096, while the sum is 34.

The square root of 71249614 is about 8440.9486433694. The cubic root of 71249614 is about 414.5664684458.

The spelling of 71249614 in words is "seventy-one million, two hundred forty-nine thousand, six hundred fourteen".