245020357 has 4 divisors (see below), whose sum is σ = 255673440. Its totient is φ = 234367276.

The previous prime is 245020313. The next prime is 245020367. The reversal of 245020357 is 753020542.

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 245020357 - 2¹¹ = 245018309 is a prime.

It is a super-3 number, since 3×245020357³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245020367) 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, 5326507 + ... + 5326552.

It is an arithmetic number, because the mean of its divisors is an integer number (63918360).

Almost surely, 2^245020357 is an apocalyptic number.

It is an amenable number.

245020357 is a deficient number, since it is larger than the sum of its proper divisors (10653083).

245020357 is a wasteful number, since it uses less digits than its factorization.

245020357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10653082.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 245020357 is about 15653.1261095029. The cubic root of 245020357 is about 625.7498047488.

Adding to 245020357 its reverse (753020542), we get a palindrome (998040899).

The spelling of 245020357 in words is "two hundred forty-five million, twenty thousand, three hundred fifty-seven".