1253003415145 has 8 divisors (see below), whose sum is σ = 1503623452104. Its totient is φ = 1002389829504.

The previous prime is 1253003415133. The next prime is 1253003415197. The reversal of 1253003415145 is 5415143003521.

It can be written as a sum of positive squares in 4 ways, for example, as 110610121561 + 1142393293584 = 332581^2 + 1068828^2 .

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 1253003415145 - 2⁷ = 1253003415017 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 1253003415145.

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, 1174714 + ... + 1971283.

It is an arithmetic number, because the mean of its divisors is an integer number (187952931513).

Almost surely, 2^{1253003415145} is an apocalyptic number.

It is an amenable number.

1253003415145 is a deficient number, since it is larger than the sum of its proper divisors (250620036959).

1253003415145 is an equidigital number, since it uses as much as digits as its factorization.

1253003415145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225659.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 1253003415145 its reverse (5415143003521), we get a palindrome (6668146418666).

The spelling of 1253003415145 in words is "one trillion, two hundred fifty-three billion, three million, four hundred fifteen thousand, one hundred forty-five".