71072053 has 8 divisors (see below), whose sum is σ = 81041688. Its totient is φ = 61745664.

The previous prime is 71072051. The next prime is 71072081. The reversal of 71072053 is 35027017.

It can be written as a sum of positive squares in 4 ways, for example, as 23833924 + 47238129 = 4882^2 + 6873^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71072053 - 2¹ = 71072051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71072051) 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, 160576 + ... + 161017.

It is an arithmetic number, because the mean of its divisors is an integer number (10130211).

Almost surely, 2^71072053 is an apocalyptic number.

It is an amenable number.

71072053 is a deficient number, since it is larger than the sum of its proper divisors (9969635).

71072053 is a wasteful number, since it uses less digits than its factorization.

71072053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321623.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 71072053 is about 8430.4242479249. The cubic root of 71072053 is about 414.2218019237.

The spelling of 71072053 in words is "seventy-one million, seventy-two thousand, fifty-three".