73154243 has 2 divisors, whose sum is σ = 73154244. Its totient is φ = 73154242.

The previous prime is 73154233. The next prime is 73154251. The reversal of 73154243 is 34245137.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73154243 - 2⁸ = 73153987 is a prime.

It is not a weakly prime, because it can be changed into another prime (73154233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36577121 + 36577122.

It is an arithmetic number, because the mean of its divisors is an integer number (36577122).

Almost surely, 2^73154243 is an apocalyptic number.

73154243 is a deficient number, since it is larger than the sum of its proper divisors (1).

73154243 is an equidigital number, since it uses as much as digits as its factorization.

73154243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 73154243 is about 8553.0253711771. The cubic root of 73154243 is about 418.2280659068.

The spelling of 73154243 in words is "seventy-three million, one hundred fifty-four thousand, two hundred forty-three".