71138302 has 8 divisors (see below), whose sum is σ = 112984416. Its totient is φ = 33476832.

The previous prime is 71138279. The next prime is 71138303. The reversal of 71138302 is 20383117.

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

It is a super-2 number, since 2×71138302² = 10121316022886408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71138303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046118 + ... + 1046185.

It is an arithmetic number, because the mean of its divisors is an integer number (14123052).

Almost surely, 2^71138302 is an apocalyptic number.

71138302 is a deficient number, since it is larger than the sum of its proper divisors (41846114).

71138302 is a wasteful number, since it uses less digits than its factorization.

71138302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092322.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 71138302 is about 8434.3524944124. The cubic root of 71138302 is about 414.3504659902.

The spelling of 71138302 in words is "seventy-one million, one hundred thirty-eight thousand, three hundred two".