73983145 has 8 divisors (see below), whose sum is σ = 88848000. Its totient is φ = 59141040.

The previous prime is 73983139. The next prime is 73983187. The reversal of 73983145 is 54138937.

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

It is not a de Polignac number, because 73983145 - 2³ = 73983137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73983098 and 73983107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2560 + ... + 12430.

It is an arithmetic number, because the mean of its divisors is an integer number (11106000).

Almost surely, 2^73983145 is an apocalyptic number.

It is an amenable number.

73983145 is a deficient number, since it is larger than the sum of its proper divisors (14864855).

73983145 is a wasteful number, since it uses less digits than its factorization.

73983145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11375.

The product of its digits is 90720, while the sum is 40.

The square root of 73983145 is about 8601.3455342754. The cubic root of 73983145 is about 419.8017677528.

It can be divided in two parts, 739 and 83145, that multiplied together give a triangular number (61444155 = T₁₁₀₈₅).

The spelling of 73983145 in words is "seventy-three million, nine hundred eighty-three thousand, one hundred forty-five".