245200143145 has 8 divisors (see below), whose sum is σ = 294260707080. Its totient is φ = 196146424320.

The previous prime is 245200143131. The next prime is 245200143211. The reversal of 245200143145 is 541341002542.

It can be written as a sum of positive squares in 4 ways, for example, as 871607529 + 244328535616 = 29523^2 + 494296^2 .

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

It is not a de Polignac number, because 245200143145 - 2⁵ = 245200143113 is a prime.

It is a super-2 number, since 2×245200143145² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632136 + ... + 1776025.

It is an arithmetic number, because the mean of its divisors is an integer number (36782588385).

Almost surely, 2^245200143145 is an apocalyptic number.

It is an amenable number.

245200143145 is a deficient number, since it is larger than the sum of its proper divisors (49060563935).

245200143145 is a wasteful number, since it uses less digits than its factorization.

245200143145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422555.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 245200143145 its reverse (541341002542), we get a palindrome (786541145687).

The spelling of 245200143145 in words is "two hundred forty-five billion, two hundred million, one hundred forty-three thousand, one hundred forty-five".