71425146 has 24 divisors (see below), whose sum is σ = 154686240. Its totient is φ = 21976656.

The previous prime is 71425103. The next prime is 71425163. The reversal of 71425146 is 64152417.

It is a super-2 number, since 2×71425146² = 10203102962242632, which contains 22 as substring.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 34206 + ... + 36233.

It is an arithmetic number, because the mean of its divisors is an integer number (6445260).

Almost surely, 2^71425146 is an apocalyptic number.

71425146 is an abundant number, since it is smaller than the sum of its proper divisors (83261094).

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

71425146 is a wasteful number, since it uses less digits than its factorization.

71425146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70470 (or 70457 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 71425146 is about 8451.3398937683. The cubic root of 71425146 is about 414.9066340502.

The spelling of 71425146 in words is "seventy-one million, four hundred twenty-five thousand, one hundred forty-six".