1253340145505 has 32 divisors (see below), whose sum is σ = 1754126668800. Its totient is φ = 841980344832.

The previous prime is 1253340145483. The next prime is 1253340145559. The reversal of 1253340145505 is 5055410433521.

It is a cyclic number.

It is not a de Polignac number, because 1253340145505 - 2³⁸ = 978462238561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1506137 + ... + 2185206.

It is an arithmetic number, because the mean of its divisors is an integer number (54816458400).

Almost surely, 2^{1253340145505} is an apocalyptic number.

It is an amenable number.

1253340145505 is a deficient number, since it is larger than the sum of its proper divisors (500786523295).

1253340145505 is a wasteful number, since it uses less digits than its factorization.

1253340145505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691553.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 1253340145505 in words is "one trillion, two hundred fifty-three billion, three hundred forty million, one hundred forty-five thousand, five hundred five".