154281241 has 3 divisors (see below), whose sum is σ = 154293663. Its totient is φ = 154268820.

The previous prime is 154281229. The next prime is 154281269. The reversal of 154281241 is 142182451.

The square root of 154281241 is 12421.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 142182451 = 2131 ⋅66721.

It can be written as a sum of positive squares in only one way, i.e., 149352841 + 4928400 = 12221^2 + 2220^2 .

It is not a de Polignac number, because 154281241 - 2²¹ = 152184089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154281221) 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 2 ways as a sum of consecutive naturals, for example, 6211 + ... + 18631.

It is an arithmetic number, because the mean of its divisors is an integer number (51431221).

Almost surely, 2^154281241 is an apocalyptic number.

154281241 is the 12421-st square number.

154281241 is the 6211-st centered octagonal number.

It is an amenable number.

154281241 is a deficient number, since it is larger than the sum of its proper divisors (12422).

154281241 is an frugal number, since it uses more digits than its factorization.

154281241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24842 (or 12421 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The cubic root of 154281241 is about 536.3369375261.

The spelling of 154281241 in words is "one hundred fifty-four million, two hundred eighty-one thousand, two hundred forty-one".