1205223153025 has 12 divisors (see below), whose sum is σ = 1494518323500. Its totient is φ = 964151674880.

The previous prime is 1205223153007. The next prime is 1205223153091. The reversal of 1205223153025 is 5203513225021.

It can be written as a sum of positive squares in 6 ways, for example, as 64477397776 + 1140745755249 = 253924^2 + 1068057^2 .

It is not a de Polignac number, because 1205223153025 - 2²⁹ = 1204686282113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270501 + ... + 1575949.

It is an arithmetic number, because the mean of its divisors is an integer number (124543193625).

Almost surely, 2^{1205223153025} is an apocalyptic number.

It is an amenable number.

1205223153025 is a deficient number, since it is larger than the sum of its proper divisors (289295170475).

1205223153025 is a wasteful number, since it uses less digits than its factorization.

1205223153025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342388 (or 1342383 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 1205223153025 its reverse (5203513225021), we get a palindrome (6408736378046).

The spelling of 1205223153025 in words is "one trillion, two hundred five billion, two hundred twenty-three million, one hundred fifty-three thousand, twenty-five".