1551104430145 has 8 divisors (see below), whose sum is σ = 1861351097256. Its totient is φ = 1240866356736.

The previous prime is 1551104430133. The next prime is 1551104430151. The reversal of 1551104430145 is 5410344011551.

It can be written as a sum of positive squares in 4 ways, for example, as 135877755456 + 1415226674689 = 368616^2 + 1189633^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1551104430145 - 2¹³ = 1551104421953 is a prime.

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 1551104430145.

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, 1744432 + ... + 2478961.

It is an arithmetic number, because the mean of its divisors is an integer number (232668887157).

Almost surely, 2^{1551104430145} is an apocalyptic number.

It is an amenable number.

1551104430145 is a deficient number, since it is larger than the sum of its proper divisors (310246667111).

1551104430145 is an equidigital number, since it uses as much as digits as its factorization.

1551104430145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296851.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 1551104430145 its reverse (5410344011551), we get a palindrome (6961448441696).

The spelling of 1551104430145 in words is "one trillion, five hundred fifty-one billion, one hundred four million, four hundred thirty thousand, one hundred forty-five".