154346945 has 8 divisors (see below), whose sum is σ = 185300136. Its totient is φ = 123421696.

The previous prime is 154346921. The next prime is 154346947. The reversal of 154346945 is 549643451.

It can be written as a sum of positive squares in 4 ways, for example, as 12475024 + 141871921 = 3532^2 + 11911^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154346945 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154346947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8159 + ... + 19371.

It is an arithmetic number, because the mean of its divisors is an integer number (23162517).

Almost surely, 2^154346945 is an apocalyptic number.

It is an amenable number.

154346945 is a deficient number, since it is larger than the sum of its proper divisors (30953191).

154346945 is a wasteful number, since it uses less digits than its factorization.

154346945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13971.

The product of its digits is 259200, while the sum is 41.

The square root of 154346945 is about 12423.6445940795. The cubic root of 154346945 is about 536.4130636116.

The spelling of 154346945 in words is "one hundred fifty-four million, three hundred forty-six thousand, nine hundred forty-five".