154521396 has 72 divisors (see below), whose sum is σ = 406267680. Its totient is φ = 49460544.

The previous prime is 154521377. The next prime is 154521407. The reversal of 154521396 is 693125451.

154521396 is a `hidden beast` number, since 1 + 545 + 21 + 3 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 154521396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295191 + ... + 295713.

Almost surely, 2^154521396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154521396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203133840).

154521396 is an abundant number, since it is smaller than the sum of its proper divisors (251746284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154521396 is a wasteful number, since it uses less digits than its factorization.

154521396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 840 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 154521396 is about 12430.6635382026. The cubic root of 154521396 is about 536.6150815653.

The spelling of 154521396 in words is "one hundred fifty-four million, five hundred twenty-one thousand, three hundred ninety-six".