245121653 has 8 divisors (see below), whose sum is σ = 280236480. Its totient is φ = 210031200.

The previous prime is 245121599. The next prime is 245121671. The reversal of 245121653 is 356121542.

245121653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245121653 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 (245121673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28793 + ... + 36321.

It is an arithmetic number, because the mean of its divisors is an integer number (35029560).

Almost surely, 2^245121653 is an apocalyptic number.

It is an amenable number.

245121653 is a deficient number, since it is larger than the sum of its proper divisors (35114827).

245121653 is an equidigital number, since it uses as much as digits as its factorization.

245121653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187.

The product of its digits is 7200, while the sum is 29.

The square root of 245121653 is about 15656.3614227572. The cubic root of 245121653 is about 625.8360250940.

The spelling of 245121653 in words is "two hundred forty-five million, one hundred twenty-one thousand, six hundred fifty-three".