71250146 has 8 divisors (see below), whose sum is σ = 116591184. Its totient is φ = 32386420.

The previous prime is 71250131. The next prime is 71250163. The reversal of 71250146 is 64105217.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1619300 + ... + 1619343.

It is an arithmetic number, because the mean of its divisors is an integer number (14573898).

Almost surely, 2^71250146 is an apocalyptic number.

71250146 is a deficient number, since it is larger than the sum of its proper divisors (45341038).

71250146 is a wasteful number, since it uses less digits than its factorization.

71250146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238656.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 71250146 is about 8440.9801563563. The cubic root of 71250146 is about 414.5675002587.

Subtracting from 71250146 its reverse (64105217), we obtain a square (7144929 = 2673²).

The spelling of 71250146 in words is "seventy-one million, two hundred fifty thousand, one hundred forty-six".