1540135451455 has 8 divisors (see below), whose sum is σ = 1878460288704. Its totient is φ = 1211909863200.

The previous prime is 1540135451447. The next prime is 1540135451483. The reversal of 1540135451455 is 5541545310451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1540135451455 - 2³ = 1540135451447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524811911 + ... + 2524812520.

It is an arithmetic number, because the mean of its divisors is an integer number (234807536088).

Almost surely, 2^{1540135451455} is an apocalyptic number.

1540135451455 is a deficient number, since it is larger than the sum of its proper divisors (338324837249).

1540135451455 is an equidigital number, since it uses as much as digits as its factorization.

1540135451455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049624497.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 1540135451455 in words is "one trillion, five hundred forty billion, one hundred thirty-five million, four hundred fifty-one thousand, four hundred fifty-five".