245193077 has 4 divisors (see below), whose sum is σ = 245225856. Its totient is φ = 245160300.

The previous prime is 245193061. The next prime is 245193083. The reversal of 245193077 is 770391542.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 770391542 = 2 ⋅385195771.

It is a cyclic number.

It is not a de Polignac number, because 245193077 - 2⁴ = 245193061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245193077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245193007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938 + ... + 22164.

It is an arithmetic number, because the mean of its divisors is an integer number (61306464).

Almost surely, 2^245193077 is an apocalyptic number.

It is an amenable number.

245193077 is a deficient number, since it is larger than the sum of its proper divisors (32779).

245193077 is a wasteful number, since it uses less digits than its factorization.

245193077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32778.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 245193077 is about 15658.6422463763. The cubic root of 245193077 is about 625.8968049433.

The spelling of 245193077 in words is "two hundred forty-five million, one hundred ninety-three thousand, seventy-seven".