71474015 has 4 divisors (see below), whose sum is σ = 85768824. Its totient is φ = 57179208.

The previous prime is 71473999. The next prime is 71474017. The reversal of 71474015 is 51047417.

71474015 = 1529² + 1530² + ... + 1558².

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

It is a cyclic number.

It is not a de Polignac number, because 71474015 - 2⁴ = 71473999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71474017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7147397 + ... + 7147406.

It is an arithmetic number, because the mean of its divisors is an integer number (21442206).

Almost surely, 2^71474015 is an apocalyptic number.

71474015 is a deficient number, since it is larger than the sum of its proper divisors (14294809).

71474015 is a wasteful number, since it uses less digits than its factorization.

71474015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14294808.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 71474015 is about 8454.2305977540. The cubic root of 71474015 is about 415.0012386860.

The spelling of 71474015 in words is "seventy-one million, four hundred seventy-four thousand, fifteen".