154140212346103 has 4 divisors (see below), whose sum is σ = 154285490586888. Its totient is φ = 153994934105320.

The previous prime is 154140212346031. The next prime is 154140212346181. The reversal of 154140212346103 is 301643212041451.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 154140212346103 - 2⁴⁵ = 118955840257271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154140212341103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72639118801 + ... + 72639120922.

It is an arithmetic number, because the mean of its divisors is an integer number (38571372646722).

Almost surely, 2^{154140212346103} is an apocalyptic number.

154140212346103 is a deficient number, since it is larger than the sum of its proper divisors (145278240785).

154140212346103 is a wasteful number, since it uses less digits than its factorization.

154140212346103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145278240784.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 154140212346103 its reverse (301643212041451), we get a palindrome (455783424387554).

The spelling of 154140212346103 in words is "one hundred fifty-four trillion, one hundred forty billion, two hundred twelve million, three hundred forty-six thousand, one hundred three".