154216445 has 16 divisors (see below), whose sum is σ = 195264000. Its totient is φ = 116601408.

The previous prime is 154216427. The next prime is 154216493. The reversal of 154216445 is 544612451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154216445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43811 + ... + 47199.

It is an arithmetic number, because the mean of its divisors is an integer number (12204000).

Almost surely, 2^154216445 is an apocalyptic number.

It is an amenable number.

154216445 is a deficient number, since it is larger than the sum of its proper divisors (41047555).

154216445 is a wasteful number, since it uses less digits than its factorization.

154216445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892.

The product of its digits is 19200, while the sum is 32.

The square root of 154216445 is about 12418.3914014658. The cubic root of 154216445 is about 536.2618422989.

Adding to 154216445 its reverse (544612451), we get a palindrome (698828896).

The spelling of 154216445 in words is "one hundred fifty-four million, two hundred sixteen thousand, four hundred forty-five".