245153519 has 4 divisors (see below), whose sum is σ = 264011496. Its totient is φ = 226295544.

The previous prime is 245153509. The next prime is 245153521. The reversal of 245153519 is 915351542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245153519 - 2²⁴ = 228376303 is a prime.

It is a super-2 number, since 2×245153519² = 120200495756166722, which contains 22 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 (245153509) 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, 9428969 + ... + 9428994.

It is an arithmetic number, because the mean of its divisors is an integer number (66002874).

Almost surely, 2^245153519 is an apocalyptic number.

245153519 is a deficient number, since it is larger than the sum of its proper divisors (18857977).

245153519 is a wasteful number, since it uses less digits than its factorization.

245153519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18857976.

The product of its digits is 27000, while the sum is 35.

The square root of 245153519 is about 15657.3790590890. The cubic root of 245153519 is about 625.8631436375.

The spelling of 245153519 in words is "two hundred forty-five million, one hundred fifty-three thousand, five hundred nineteen".