1742123357225 has 6 divisors (see below), whose sum is σ = 2160232962990. Its totient is φ = 1393698685760.

The previous prime is 1742123357201. The next prime is 1742123357279. The reversal of 1742123357225 is 5227533212471.

It can be written as a sum of positive squares in 3 ways, for example, as 86791516816 + 1655331840409 = 294604^2 + 1286597^2 .

It is not a de Polignac number, because 1742123357225 - 2¹² = 1742123353129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34842467120 + ... + 34842467169.

It is an arithmetic number, because the mean of its divisors is an integer number (360038827165).

Almost surely, 2^{1742123357225} is an apocalyptic number.

It is an amenable number.

1742123357225 is a deficient number, since it is larger than the sum of its proper divisors (418109605765).

1742123357225 is an equidigital number, since it uses as much as digits as its factorization.

1742123357225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69684934299 (or 69684934294 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

Adding to 1742123357225 its reverse (5227533212471), we get a palindrome (6969656569696).

The spelling of 1742123357225 in words is "one trillion, seven hundred forty-two billion, one hundred twenty-three million, three hundred fifty-seven thousand, two hundred twenty-five".