71201225039 has 4 divisors (see below), whose sum is σ = 81372828624. Its totient is φ = 61029621456.

The previous prime is 71201225033. The next prime is 71201225057. The reversal of 71201225039 is 93052210217.

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 71201225039 - 2⁴ = 71201225023 is a prime.

It is a super-2 number, since 2×71201225039² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71201224996 and 71201225014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71201225033) 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, 5085801782 + ... + 5085801795.

It is an arithmetic number, because the mean of its divisors is an integer number (20343207156).

Almost surely, 2^71201225039 is an apocalyptic number.

71201225039 is a deficient number, since it is larger than the sum of its proper divisors (10171603585).

71201225039 is a wasteful number, since it uses less digits than its factorization.

71201225039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171603584.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 71201225039 in words is "seventy-one billion, two hundred one million, two hundred twenty-five thousand, thirty-nine".