154321049 has 16 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 147952896.

The previous prime is 154320973. The next prime is 154321067. The reversal of 154321049 is 940123451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154321049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154321549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526547 + ... + 526839.

It is an arithmetic number, because the mean of its divisors is an integer number (10054800).

Almost surely, 2^154321049 is an apocalyptic number.

It is an amenable number.

154321049 is a deficient number, since it is larger than the sum of its proper divisors (6555751).

154321049 is a wasteful number, since it uses less digits than its factorization.

154321049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 154321049 is about 12422.6023441145. The cubic root of 154321049 is about 536.3830625219.

The spelling of 154321049 in words is "one hundred fifty-four million, three hundred twenty-one thousand, forty-nine".