245011123 has 12 divisors (see below), whose sum is σ = 301779432. Its totient is φ = 197655360.

The previous prime is 245011097. The next prime is 245011133. The reversal of 245011123 is 321110542.

It is a de Polignac number, because none of the positive numbers 2^k-245011123 is a prime.

It is a super-2 number, since 2×245011123² = 120060900787442258, which contains 22 as substring.

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 245011123.

It is not an unprimeable number, because it can be changed into a prime (245011133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146233 + ... + 147898.

It is an arithmetic number, because the mean of its divisors is an integer number (25148286).

Almost surely, 2^245011123 is an apocalyptic number.

245011123 is a deficient number, since it is larger than the sum of its proper divisors (56768309).

245011123 is a wasteful number, since it uses less digits than its factorization.

245011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294162 (or 294155 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 245011123 is about 15652.8311496675. The cubic root of 245011123 is about 625.7419438424.

Adding to 245011123 its reverse (321110542), we get a palindrome (566121665).

The spelling of 245011123 in words is "two hundred forty-five million, eleven thousand, one hundred twenty-three".