154423135 has 4 divisors (see below), whose sum is σ = 185307768. Its totient is φ = 123538504.

The previous prime is 154423123. The next prime is 154423151. The reversal of 154423135 is 531324451.

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

It is a cyclic number.

It is not a de Polignac number, because 154423135 - 2¹⁹ = 153898847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15442309 + ... + 15442318.

It is an arithmetic number, because the mean of its divisors is an integer number (46326942).

Almost surely, 2^154423135 is an apocalyptic number.

154423135 is a deficient number, since it is larger than the sum of its proper divisors (30884633).

154423135 is an equidigital number, since it uses as much as digits as its factorization.

154423135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30884632.

The product of its digits is 7200, while the sum is 28.

The square root of 154423135 is about 12426.7105462387. The cubic root of 154423135 is about 536.5013119589.

Adding to 154423135 its reverse (531324451), we get a palindrome (685747586).

The spelling of 154423135 in words is "one hundred fifty-four million, four hundred twenty-three thousand, one hundred thirty-five".