73143970 has 8 divisors (see below), whose sum is σ = 131659164. Its totient is φ = 29257584.

The previous prime is 73143953. The next prime is 73144007. The reversal of 73143970 is 7934137.

It can be written as a sum of positive squares in 2 ways, for example, as 71927361 + 1216609 = 8481^2 + 1103^2 .

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3657189 + ... + 3657208.

Almost surely, 2^73143970 is an apocalyptic number.

73143970 is a deficient number, since it is larger than the sum of its proper divisors (58515194).

73143970 is a wasteful number, since it uses less digits than its factorization.

73143970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314404.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 73143970 is about 8552.4248023587. The cubic root of 73143970 is about 418.2084878305.

The spelling of 73143970 in words is "seventy-three million, one hundred forty-three thousand, nine hundred seventy".