73111457 has 4 divisors (see below), whose sum is σ = 76290240. Its totient is φ = 69932676.

The previous prime is 73111429. The next prime is 73111459. The reversal of 73111457 is 75411137.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73111457 - 2⁶ = 73111393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73111459) 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, 1589357 + ... + 1589402.

It is an arithmetic number, because the mean of its divisors is an integer number (19072560).

Almost surely, 2^73111457 is an apocalyptic number.

It is an amenable number.

73111457 is a deficient number, since it is larger than the sum of its proper divisors (3178783).

73111457 is a wasteful number, since it uses less digits than its factorization.

73111457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178782.

The product of its digits is 2940, while the sum is 29.

The square root of 73111457 is about 8550.5237851257. The cubic root of 73111457 is about 418.1465131262.

The spelling of 73111457 in words is "seventy-three million, one hundred eleven thousand, four hundred fifty-seven".