154203215413253 has 4 divisors (see below), whose sum is σ = 154203528436608. Its totient is φ = 154202902389900.

The previous prime is 154203215413231. The next prime is 154203215413327. The reversal of 154203215413253 is 352314512302451.

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 154203215413253 - 2⁴⁰ = 153103703785477 is a prime.

It is a super-2 number, since 2×154203215413253² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154203215413253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154203215413223) 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, 155771573 + ... + 156758378.

It is an arithmetic number, because the mean of its divisors is an integer number (38550882109152).

Almost surely, 2^{154203215413253} is an apocalyptic number.

It is an amenable number.

154203215413253 is a deficient number, since it is larger than the sum of its proper divisors (313023355).

154203215413253 is an equidigital number, since it uses as much as digits as its factorization.

154203215413253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313023354.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 154203215413253 in words is "one hundred fifty-four trillion, two hundred three billion, two hundred fifteen million, four hundred thirteen thousand, two hundred fifty-three".