75671144 has 16 divisors (see below), whose sum is σ = 142629120. Its totient is φ = 37636720.

The previous prime is 75671077. The next prime is 75671147. The reversal of 75671144 is 44117657.

It is a happy number.

It is a super-2 number, since 2×75671144² = 11452244068537472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75671147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23234 + ... + 26289.

It is an arithmetic number, because the mean of its divisors is an integer number (8914320).

Almost surely, 2^75671144 is an apocalyptic number.

It is an amenable number.

75671144 is a deficient number, since it is larger than the sum of its proper divisors (66957976).

75671144 is a wasteful number, since it uses less digits than its factorization.

75671144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49720 (or 49716 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 75671144 is about 8698.9162543388. The cubic root of 75671144 is about 422.9705207042.

The spelling of 75671144 in words is "seventy-five million, six hundred seventy-one thousand, one hundred forty-four".