1223450440154 has 32 divisors (see below), whose sum is σ = 1917285721344. Its totient is φ = 584420094720.

The previous prime is 1223450440129. The next prime is 1223450440169. The reversal of 1223450440154 is 4510440543221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254194652 + ... + 254199464.

It is an arithmetic number, because the mean of its divisors is an integer number (59915178792).

Almost surely, 2^{1223450440154} is an apocalyptic number.

1223450440154 is a deficient number, since it is larger than the sum of its proper divisors (693835281190).

1223450440154 is a wasteful number, since it uses less digits than its factorization.

1223450440154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10382.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1223450440154 its reverse (4510440543221), we get a palindrome (5733890983375).

The spelling of 1223450440154 in words is "one trillion, two hundred twenty-three billion, four hundred fifty million, four hundred forty thousand, one hundred fifty-four".