2145242210153 has 4 divisors (see below), whose sum is σ = 2451705383040. Its totient is φ = 1838779037268.

The previous prime is 2145242210147. The next prime is 2145242210161. The reversal of 2145242210153 is 3510122425412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2145242210153 - 2¹² = 2145242206057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145242216153) 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, 153231586433 + ... + 153231586446.

It is an arithmetic number, because the mean of its divisors is an integer number (612926345760).

Almost surely, 2^{2145242210153} is an apocalyptic number.

It is an amenable number.

2145242210153 is a deficient number, since it is larger than the sum of its proper divisors (306463172887).

2145242210153 is an equidigital number, since it uses as much as digits as its factorization.

2145242210153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306463172886.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 2145242210153 its reverse (3510122425412), we get a palindrome (5655364635565).

The spelling of 2145242210153 in words is "two trillion, one hundred forty-five billion, two hundred forty-two million, two hundred ten thousand, one hundred fifty-three".