315144345551 has 4 divisors (see below), whose sum is σ = 360164966352. Its totient is φ = 270123724752.

The previous prime is 315144345547. The next prime is 315144345569. The reversal of 315144345551 is 155543441513.

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

It is not a de Polignac number, because 315144345551 - 2² = 315144345547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315144345499 and 315144345508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315144345511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22510310390 + ... + 22510310403.

It is an arithmetic number, because the mean of its divisors is an integer number (90041241588).

Almost surely, 2^315144345551 is an apocalyptic number.

315144345551 is a deficient number, since it is larger than the sum of its proper divisors (45020620801).

315144345551 is an equidigital number, since it uses as much as digits as its factorization.

315144345551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45020620800.

The product of its digits is 360000, while the sum is 41.

The spelling of 315144345551 in words is "three hundred fifteen billion, one hundred forty-four million, three hundred forty-five thousand, five hundred fifty-one".