1540145013253 has 32 divisors (see below), whose sum is σ = 1955446272000. Its totient is φ = 1178128749120.

The previous prime is 1540145013247. The next prime is 1540145013271. The reversal of 1540145013253 is 3523105410451.

It is a cyclic number.

It is not a de Polignac number, because 1540145013253 - 2⁹ = 1540145012741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540145014253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3030663 + ... + 3502171.

It is an arithmetic number, because the mean of its divisors is an integer number (61107696000).

Almost surely, 2^{1540145013253} is an apocalyptic number.

It is an amenable number.

1540145013253 is a deficient number, since it is larger than the sum of its proper divisors (415301258747).

1540145013253 is a wasteful number, since it uses less digits than its factorization.

1540145013253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472305.

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

The spelling of 1540145013253 in words is "one trillion, five hundred forty billion, one hundred forty-five million, thirteen thousand, two hundred fifty-three".