154022401 has 4 divisors (see below), whose sum is σ = 165870292. Its totient is φ = 142174512.

The previous prime is 154022383. The next prime is 154022437. The reversal of 154022401 is 104220451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103042801 + 50979600 = 10151^2 + 7140^2 .

It is a cyclic number.

It is not a de Polignac number, because 154022401 - 2⁵ = 154022369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154022441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5923926 + ... + 5923951.

It is an arithmetic number, because the mean of its divisors is an integer number (41467573).

Almost surely, 2^154022401 is an apocalyptic number.

It is an amenable number.

154022401 is a deficient number, since it is larger than the sum of its proper divisors (11847891).

154022401 is a wasteful number, since it uses less digits than its factorization.

154022401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11847890.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 154022401 is about 12410.5761751822. The cubic root of 154022401 is about 536.0368294011.

Adding to 154022401 its reverse (104220451), we get a palindrome (258242852).

The spelling of 154022401 in words is "one hundred fifty-four million, twenty-two thousand, four hundred one".