154000000197 has 48 divisors (see below), whose sum is σ = 243903689920. Its totient is φ = 96011225856.

The previous prime is 154000000169. The next prime is 154000000207. The reversal of 154000000197 is 791000000451.

154000000197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154000000197 - 2⁷ = 154000000069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154000000197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154000005197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1162218 + ... + 1287924.

Almost surely, 2^154000000197 is an apocalyptic number.

154000000197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

154000000197 is a deficient number, since it is larger than the sum of its proper divisors (89903689723).

154000000197 is a wasteful number, since it uses less digits than its factorization.

154000000197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125907 (or 125884 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The spelling of 154000000197 in words is "one hundred fifty-four billion, one hundred ninety-seven", and thus it is an aban number.