73800143 has 4 divisors (see below), whose sum is σ = 73819200. Its totient is φ = 73781088.

The previous prime is 73800137. The next prime is 73800149. The reversal of 73800143 is 34100837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34100837 = 31 ⋅1100027.

It is an interprime number because it is at equal distance from previous prime (73800137) and next prime (73800149).

It is a cyclic number.

It is not a de Polignac number, because 73800143 - 2⁴ = 73800127 is a prime.

It is a super-2 number, since 2×73800143² = 10892922213640898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73800149) 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, 1418 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (18454800).

Almost surely, 2^73800143 is an apocalyptic number.

73800143 is a deficient number, since it is larger than the sum of its proper divisors (19057).

73800143 is a wasteful number, since it uses less digits than its factorization.

73800143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19056.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 73800143 is about 8590.7009609228. The cubic root of 73800143 is about 419.4553465341.

The spelling of 73800143 in words is "seventy-three million, eight hundred thousand, one hundred forty-three".