154189332 has 252 divisors, whose sum is σ = 488439840. Its totient is φ = 42340320.

The previous prime is 154189331. The next prime is 154189391. The reversal of 154189332 is 233981451.

154189332 is a `hidden beast` number, since 1 + 541 + 89 + 3 + 32 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154189331) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 6703873 + ... + 6703895.

Almost surely, 2^154189332 is an apocalyptic number.

154189332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154189332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244219920).

154189332 is an abundant number, since it is smaller than the sum of its proper divisors (334250508).

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

154189332 is a wasteful number, since it uses less digits than its factorization.

154189332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 154189332 is about 12417.2997064579. The cubic root of 154189332 is about 536.2304134858.

The spelling of 154189332 in words is "one hundred fifty-four million, one hundred eighty-nine thousand, three hundred thirty-two".