1254061312045 has 8 divisors (see below), whose sum is σ = 1504977096600. Its totient is φ = 1003180034880.

The previous prime is 1254061312039. The next prime is 1254061312117. The reversal of 1254061312045 is 5402131604521.

It can be written as a sum of positive squares in 4 ways, for example, as 729278424484 + 524782887561 = 853978^2 + 724419^2 .

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

It is not a de Polignac number, because 1254061312045 - 2¹⁵ = 1254061279277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1254061312045.

It is a congruent number.

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, 8546826 + ... + 8692315.

It is an arithmetic number, because the mean of its divisors is an integer number (188122137075).

Almost surely, 2^{1254061312045} is an apocalyptic number.

It is an amenable number.

1254061312045 is a deficient number, since it is larger than the sum of its proper divisors (250915784555).

1254061312045 is a wasteful number, since it uses less digits than its factorization.

1254061312045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17253695.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 1254061312045 its reverse (5402131604521), we get a palindrome (6656192916566).

The spelling of 1254061312045 in words is "one trillion, two hundred fifty-four billion, sixty-one million, three hundred twelve thousand, forty-five".