154997196 has 12 divisors (see below), whose sum is σ = 361660152. Its totient is φ = 51665728.

The previous prime is 154997191. The next prime is 154997201. The reversal of 154997196 is 691799451.

154997196 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (154997191) and next prime (154997201).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (154997191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6458205 + ... + 6458228.

It is an arithmetic number, because the mean of its divisors is an integer number (30138346).

Almost surely, 2^154997196 is an apocalyptic number.

It is an amenable number.

154997196 is an abundant number, since it is smaller than the sum of its proper divisors (206662956).

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

154997196 is a wasteful number, since it uses less digits than its factorization.

154997196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916440 (or 12916438 counting only the distinct ones).

The product of its digits is 612360, while the sum is 51.

The square root of 154997196 is about 12449.7869861295. The cubic root of 154997196 is about 537.1652962909.

The spelling of 154997196 in words is "one hundred fifty-four million, nine hundred ninety-seven thousand, one hundred ninety-six".