1243152002154 has 32 divisors (see below), whose sum is σ = 2693779450560. Its totient is φ = 380938505472.

The previous prime is 1243152002123. The next prime is 1243152002207. The reversal of 1243152002154 is 4512002513421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141713809 + ... + 141722580.

It is an arithmetic number, because the mean of its divisors is an integer number (84180607830).

Almost surely, 2^{1243152002154} is an apocalyptic number.

1243152002154 is an abundant number, since it is smaller than the sum of its proper divisors (1450627448406).

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

1243152002154 is a wasteful number, since it uses less digits than its factorization.

1243152002154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283436454.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1243152002154 its reverse (4512002513421), we get a palindrome (5755154515575).

The spelling of 1243152002154 in words is "one trillion, two hundred forty-three billion, one hundred fifty-two million, two thousand, one hundred fifty-four".