154412421 has 8 divisors (see below), whose sum is σ = 208956384. Its totient is φ = 101405040.

The previous prime is 154412407. The next prime is 154412429. The reversal of 154412421 is 124214451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154412421 - 2¹⁸ = 154150277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154412391 and 154412400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154412429) 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 7 ways as a sum of consecutive naturals, for example, 383910 + ... + 384311.

It is an arithmetic number, because the mean of its divisors is an integer number (26119548).

Almost surely, 2^154412421 is an apocalyptic number.

It is an amenable number.

154412421 is a deficient number, since it is larger than the sum of its proper divisors (54543963).

154412421 is an equidigital number, since it uses as much as digits as its factorization.

154412421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768291.

The product of its digits is 1280, while the sum is 24.

The square root of 154412421 is about 12426.2794512275. The cubic root of 154412421 is about 536.4889040426.

Adding to 154412421 its reverse (124214451), we get a palindrome (278626872).

The spelling of 154412421 in words is "one hundred fifty-four million, four hundred twelve thousand, four hundred twenty-one".