154968321 has 16 divisors (see below), whose sum is σ = 213899264. Its totient is φ = 99719424.

The previous prime is 154968293. The next prime is 154968323. The reversal of 154968321 is 123869451.

It is not a de Polignac number, because 154968321 - 2⁹ = 154967809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154968321.

It is not an unprimeable number, because it can be changed into a prime (154968323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8601 + ... + 19593.

It is an arithmetic number, because the mean of its divisors is an integer number (13368704).

Almost surely, 2^154968321 is an apocalyptic number.

It is an amenable number.

154968321 is a deficient number, since it is larger than the sum of its proper divisors (58930943).

154968321 is a wasteful number, since it uses less digits than its factorization.

154968321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160.

The product of its digits is 51840, while the sum is 39.

The square root of 154968321 is about 12448.6272737198. The cubic root of 154968321 is about 537.1319373838.

The spelling of 154968321 in words is "one hundred fifty-four million, nine hundred sixty-eight thousand, three hundred twenty-one".