154113421 has 16 divisors (see below), whose sum is σ = 192545280. Its totient is φ = 119836080.

The previous prime is 154113397. The next prime is 154113481. The reversal of 154113421 is 124311451.

It is not a de Polignac number, because 154113421 - 2¹⁷ = 153982349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154113392 and 154113401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154113481) 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, 40290 + ... + 43948.

It is an arithmetic number, because the mean of its divisors is an integer number (12034080).

Almost surely, 2^154113421 is an apocalyptic number.

154113421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154113421 is a deficient number, since it is larger than the sum of its proper divisors (38431859).

154113421 is a wasteful number, since it uses less digits than its factorization.

154113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its digits is 480, while the sum is 22.

The square root of 154113421 is about 12414.2426671948. The cubic root of 154113421 is about 536.1423994657.

Adding to 154113421 its reverse (124311451), we get a palindrome (278424872).

The spelling of 154113421 in words is "one hundred fifty-four million, one hundred thirteen thousand, four hundred twenty-one".