1540154101222 has 64 divisors (see below), whose sum is σ = 2608615342080. Its totient is φ = 675650073600.

The previous prime is 1540154101181. The next prime is 1540154101223. The reversal of 1540154101222 is 2221014510451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540154101223) 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, 737267554 + ... + 737269642.

It is an arithmetic number, because the mean of its divisors is an integer number (40759614720).

Almost surely, 2^{1540154101222} is an apocalyptic number.

1540154101222 is a deficient number, since it is larger than the sum of its proper divisors (1068461240858).

1540154101222 is a wasteful number, since it uses less digits than its factorization.

1540154101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 1540154101222 its reverse (2221014510451), we get a palindrome (3761168611673).

The spelling of 1540154101222 in words is "one trillion, five hundred forty billion, one hundred fifty-four million, one hundred one thousand, two hundred twenty-two".