154225155212111 has 4 divisors (see below), whose sum is σ = 154463524849872. Its totient is φ = 153986785574352.

The previous prime is 154225155212027. The next prime is 154225155212119. The reversal of 154225155212111 is 111212551522451.

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-154225155212111 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 (154225155212119) 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, 119184817910 + ... + 119184819203.

It is an arithmetic number, because the mean of its divisors is an integer number (38615881212468).

Almost surely, 2^{154225155212111} is an apocalyptic number.

154225155212111 is a deficient number, since it is larger than the sum of its proper divisors (238369637761).

154225155212111 is an equidigital number, since it uses as much as digits as its factorization.

154225155212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238369637760.

The product of its digits is 40000, while the sum is 38.

The spelling of 154225155212111 in words is "one hundred fifty-four trillion, two hundred twenty-five billion, one hundred fifty-five million, two hundred twelve thousand, one hundred eleven".