245445077 has 4 divisors (see below), whose sum is σ = 246914976. Its totient is φ = 243975180.

The previous prime is 245445061. The next prime is 245445089. The reversal of 245445077 is 770544542.

245445077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 770544542 = 2 ⋅385272271.

It is a cyclic number.

It is not a de Polignac number, because 245445077 - 2⁴ = 245445061 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 245445077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245445007) 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, 734699 + ... + 735032.

It is an arithmetic number, because the mean of its divisors is an integer number (61728744).

Almost surely, 2^245445077 is an apocalyptic number.

It is an amenable number.

245445077 is a deficient number, since it is larger than the sum of its proper divisors (1469899).

245445077 is a wasteful number, since it uses less digits than its factorization.

245445077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469898.

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 245445077 is about 15666.6868545969. The cubic root of 245445077 is about 626.1111557353. Note that the first 4 decimals are identical.

The spelling of 245445077 in words is "two hundred forty-five million, four hundred forty-five thousand, seventy-seven".