1573242273 has 24 divisors (see below), whose sum is σ = 2305233216. Its totient is φ = 1033812000.

The previous prime is 1573242269. The next prime is 1573242311. The reversal of 1573242273 is 3722423751.

It is not a de Polignac number, because 1573242273 - 2² = 1573242269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1573242173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173611 + ... + 182447.

It is an arithmetic number, because the mean of its divisors is an integer number (96051384).

Almost surely, 2^1573242273 is an apocalyptic number.

It is an amenable number.

1573242273 is a deficient number, since it is larger than the sum of its proper divisors (731990943).

1573242273 is a wasteful number, since it uses less digits than its factorization.

1573242273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125 (or 9122 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 1573242273 is about 39664.1182052494. The cubic root of 1573242273 is about 1163.0504021450.

The spelling of 1573242273 in words is "one billion, five hundred seventy-three million, two hundred forty-two thousand, two hundred seventy-three".