71368146 has 12 divisors (see below), whose sum is σ = 154631022. Its totient is φ = 23789376.

The previous prime is 71368139. The next prime is 71368147. The reversal of 71368146 is 64186317.

It can be written as a sum of positive squares in only one way, i.e., 50765625 + 20602521 = 7125^2 + 4539^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71368146.

It is not an unprimeable number, because it can be changed into a prime (71368147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1982431 + ... + 1982466.

Almost surely, 2^71368146 is an apocalyptic number.

71368146 is an abundant number, since it is smaller than the sum of its proper divisors (83262876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71368146 is a wasteful number, since it uses less digits than its factorization.

71368146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964905 (or 3964902 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 71368146 is about 8447.9669743673. The cubic root of 71368146 is about 414.7962342197.

The spelling of 71368146 in words is "seventy-one million, three hundred sixty-eight thousand, one hundred forty-six".