73227145 has 8 divisors (see below), whose sum is σ = 89313480. Its totient is φ = 57621120.

The previous prime is 73227137. The next prime is 73227149. The reversal of 73227145 is 54172237.

It can be written as a sum of positive squares in 4 ways, for example, as 2985984 + 70241161 = 1728^2 + 8381^2 .

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

It is not a de Polignac number, because 73227145 - 2³ = 73227137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73227149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119740 + ... + 120349.

It is an arithmetic number, because the mean of its divisors is an integer number (11164185).

Almost surely, 2^73227145 is an apocalyptic number.

It is an amenable number.

73227145 is a deficient number, since it is larger than the sum of its proper divisors (16086335).

73227145 is a wasteful number, since it uses less digits than its factorization.

73227145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240155.

The product of its digits is 11760, while the sum is 31.

The square root of 73227145 is about 8557.2860767886. The cubic root of 73227145 is about 418.3669484407.

The spelling of 73227145 in words is "seventy-three million, two hundred twenty-seven thousand, one hundred forty-five".