73151233 has 2 divisors, whose sum is σ = 73151234. Its totient is φ = 73151232.

The previous prime is 73151231. The next prime is 73151263. The reversal of 73151233 is 33215137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 19158129 = 7348^2 + 4377^2 .

It is an emirp because it is prime and its reverse (33215137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73151233 - 2¹ = 73151231 is a prime.

It is a super-2 number, since 2×73151233² = 10702205778840578, which contains 22 as substring.

Together with 73151231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 73151198 and 73151207.

It is not a weakly prime, because it can be changed into another prime (73151231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36575616 + 36575617.

It is an arithmetic number, because the mean of its divisors is an integer number (36575617).

Almost surely, 2^73151233 is an apocalyptic number.

It is an amenable number.

73151233 is a deficient number, since it is larger than the sum of its proper divisors (1).

73151233 is an equidigital number, since it uses as much as digits as its factorization.

73151233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 25.

The square root of 73151233 is about 8552.8494082382. The cubic root of 73151233 is about 418.2223296994. Note that the first 3 decimals are identical.

The spelling of 73151233 in words is "seventy-three million, one hundred fifty-one thousand, two hundred thirty-three".