1234515145345 has 4 divisors (see below), whose sum is σ = 1481418174420. Its totient is φ = 987612116272.

The previous prime is 1234515145343. The next prime is 1234515145373. The reversal of 1234515145345 is 5435415154321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 628557209856 + 605957935489 = 792816^2 + 778433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234515145345 - 2¹ = 1234515145343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234515145343) 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, 123451514530 + ... + 123451514539.

It is an arithmetic number, because the mean of its divisors is an integer number (370354543605).

Almost surely, 2^{1234515145345} is an apocalyptic number.

It is an amenable number.

1234515145345 is a deficient number, since it is larger than the sum of its proper divisors (246903029075).

1234515145345 is an equidigital number, since it uses as much as digits as its factorization.

1234515145345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246903029074.

The product of its digits is 720000, while the sum is 43.

The spelling of 1234515145345 in words is "one trillion, two hundred thirty-four billion, five hundred fifteen million, one hundred forty-five thousand, three hundred forty-five".