154997146 has 8 divisors (see below), whose sum is σ = 232623360. Its totient is φ = 77456028.

The previous prime is 154997111. The next prime is 154997191. The reversal of 154997146 is 641799451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 154997096 and 154997105.

It is an unprimeable number.

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, 16506 + ... + 24133.

It is an arithmetic number, because the mean of its divisors is an integer number (29077920).

Almost surely, 2^154997146 is an apocalyptic number.

154997146 is a deficient number, since it is larger than the sum of its proper divisors (77626214).

154997146 is a wasteful number, since it uses less digits than its factorization.

154997146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42548.

The product of its digits is 272160, while the sum is 46.

The square root of 154997146 is about 12449.7849780629. The cubic root of 154997146 is about 537.1652385302.

The spelling of 154997146 in words is "one hundred fifty-four million, nine hundred ninety-seven thousand, one hundred forty-six".