193021049 has 4 divisors (see below), whose sum is σ = 207868836. Its totient is φ = 178173264.

The previous prime is 193021039. The next prime is 193021069. The reversal of 193021049 is 940120391.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940120391 = 7 ⋅134302913.

It can be written as a sum of positive squares in 2 ways, for example, as 17935225 + 175085824 = 4235^2 + 13232^2 .

It is a cyclic number.

It is not a de Polignac number, because 193021049 - 2¹⁶ = 192955513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193021039) 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, 7423874 + ... + 7423899.

It is an arithmetic number, because the mean of its divisors is an integer number (51967209).

Almost surely, 2^193021049 is an apocalyptic number.

It is an amenable number.

193021049 is a deficient number, since it is larger than the sum of its proper divisors (14847787).

193021049 is a wasteful number, since it uses less digits than its factorization.

193021049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14847786.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 193021049 is about 13893.2015388822. The cubic root of 193021049 is about 577.9206647495.

The spelling of 193021049 in words is "one hundred ninety-three million, twenty-one thousand, forty-nine".