154121432 has 8 divisors (see below), whose sum is σ = 288977700. Its totient is φ = 77060712.

The previous prime is 154121381. The next prime is 154121437. The reversal of 154121432 is 234121451.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 154121398 and 154121407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154121437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9632582 + ... + 9632597.

Almost surely, 2^154121432 is an apocalyptic number.

It is an amenable number.

154121432 is a deficient number, since it is larger than the sum of its proper divisors (134856268).

154121432 is a wasteful number, since it uses less digits than its factorization.

154121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19265185 (or 19265181 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 154121432 is about 12414.5653165949. The cubic root of 154121432 is about 536.1516890792.

Adding to 154121432 its reverse (234121451), we get a palindrome (388242883).

The spelling of 154121432 in words is "one hundred fifty-four million, one hundred twenty-one thousand, four hundred thirty-two".