245113511 has 4 divisors (see below), whose sum is σ = 245425752. Its totient is φ = 244801272.

The previous prime is 245113483. The next prime is 245113541. The reversal of 245113511 is 115311542.

245113511 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 an emirpimes, since its reverse is a distinct semiprime: 115311542 = 2 ⋅57655771.

It is a cyclic number.

It is not a de Polignac number, because 245113511 - 2²⁶ = 178004647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245113541) 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, 154940 + ... + 156513.

It is an arithmetic number, because the mean of its divisors is an integer number (61356438).

Almost surely, 2^245113511 is an apocalyptic number.

245113511 is a deficient number, since it is larger than the sum of its proper divisors (312241).

245113511 is an equidigital number, since it uses as much as digits as its factorization.

245113511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312240.

The product of its digits is 600, while the sum is 23.

The square root of 245113511 is about 15656.1013984964. The cubic root of 245113511 is about 625.8290957274.

The spelling of 245113511 in words is "two hundred forty-five million, one hundred thirteen thousand, five hundred eleven".