71338153 has 2 divisors, whose sum is σ = 71338154. Its totient is φ = 71338152.

The previous prime is 71338147. The next prime is 71338177. The reversal of 71338153 is 35183317.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51151104 + 20187049 = 7152^2 + 4493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71338153 is a prime.

It is not a weakly prime, because it can be changed into another prime (71338133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35669076 + 35669077.

It is an arithmetic number, because the mean of its divisors is an integer number (35669077).

Almost surely, 2^71338153 is an apocalyptic number.

It is an amenable number.

71338153 is a deficient number, since it is larger than the sum of its proper divisors (1).

71338153 is an equidigital number, since it uses as much as digits as its factorization.

71338153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 71338153 is about 8446.1916269997. The cubic root of 71338153 is about 414.7381189990.

The spelling of 71338153 in words is "seventy-one million, three hundred thirty-eight thousand, one hundred fifty-three".