71145701 has 12 divisors (see below), whose sum is σ = 80114412. Its totient is φ = 63096000.

The previous prime is 71145689. The next prime is 71145743. The reversal of 71145701 is 10754117.

It can be written as a sum of positive squares in 2 ways, for example, as 2172676 + 68973025 = 1474^2 + 8305^2 .

It is not a de Polignac number, because 71145701 - 2⁶ = 71145637 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 (71145761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2210 + ... + 12131.

It is an arithmetic number, because the mean of its divisors is an integer number (6676201).

Almost surely, 2^71145701 is an apocalyptic number.

It is an amenable number.

71145701 is a deficient number, since it is larger than the sum of its proper divisors (8968711).

71145701 is a wasteful number, since it uses less digits than its factorization.

71145701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404 (or 14393 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 71145701 is about 8434.7911058899. The cubic root of 71145701 is about 414.3648308388.

Adding to 71145701 its reverse (10754117), we get a palindrome (81899818).

The spelling of 71145701 in words is "seventy-one million, one hundred forty-five thousand, seven hundred one".