1573546049 has 4 divisors (see below), whose sum is σ = 1575676080. Its totient is φ = 1571416020.

The previous prime is 1573546043. The next prime is 1573546063. The reversal of 1573546049 is 9406453751.

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 1573546049 - 2²⁸ = 1305110593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1573546043) 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, 1063907 + ... + 1065384.

It is an arithmetic number, because the mean of its divisors is an integer number (393919020).

Almost surely, 2^1573546049 is an apocalyptic number.

It is an amenable number.

1573546049 is a deficient number, since it is larger than the sum of its proper divisors (2130031).

1573546049 is an equidigital number, since it uses as much as digits as its factorization.

1573546049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130030.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 1573546049 is about 39667.9473756836. The cubic root of 1573546049 is about 1163.1252547954.

The spelling of 1573546049 in words is "one billion, five hundred seventy-three million, five hundred forty-six thousand, forty-nine".