1254105535540 has 96 divisors (see below), whose sum is σ = 3144767472000. Its totient is φ = 414057484800.

The previous prime is 1254105535499. The next prime is 1254105535541. The reversal of 1254105535540 is 455355014521.

It is a junction number, because it is equal to n+sod(n) for n = 1254105535493 and 1254105535502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254105535541) 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, 3419790 + ... + 3768709.

It is an arithmetic number, because the mean of its divisors is an integer number (32757994500).

Almost surely, 2^{1254105535540} is an apocalyptic number.

1254105535540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254105535540 is an abundant number, since it is smaller than the sum of its proper divisors (1890661936460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1254105535540 is a wasteful number, since it uses less digits than its factorization.

1254105535540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7188593 (or 7188591 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 1254105535540 in words is "one trillion, two hundred fifty-four billion, one hundred five million, five hundred thirty-five thousand, five hundred forty".