1540004354111 has 4 divisors (see below), whose sum is σ = 1542384577872. Its totient is φ = 1537624130352.

The previous prime is 1540004354069. The next prime is 1540004354149. The reversal of 1540004354111 is 1114534000451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540004354111 is a prime.

It is a super-2 number, since 2×1540004354111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540004354411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190110910 + ... + 1190112203.

It is an arithmetic number, because the mean of its divisors is an integer number (385596144468).

Almost surely, 2^{1540004354111} is an apocalyptic number.

1540004354111 is a deficient number, since it is larger than the sum of its proper divisors (2380223761).

1540004354111 is an equidigital number, since it uses as much as digits as its factorization.

1540004354111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380223760.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1540004354111 its reverse (1114534000451), we get a palindrome (2654538354562).

The spelling of 1540004354111 in words is "one trillion, five hundred forty billion, four million, three hundred fifty-four thousand, one hundred eleven".