154561932 has 120 divisors (see below), whose sum is σ = 482017536. Its totient is φ = 42226272.

The previous prime is 154561871. The next prime is 154561933. The reversal of 154561932 is 239165451.

154561932 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 619 + 32 = 666.

154561932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (154561933) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50683 + ... + 53645.

Almost surely, 2^154561932 is an apocalyptic number.

154561932 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 154561932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241008768).

154561932 is an abundant number, since it is smaller than the sum of its proper divisors (327455604).

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

154561932 is a wasteful number, since it uses less digits than its factorization.

154561932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 2998 counting only the distinct ones).

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

The square root of 154561932 is about 12432.2939154446. The cubic root of 154561932 is about 536.6620013397.

The spelling of 154561932 in words is "one hundred fifty-four million, five hundred sixty-one thousand, nine hundred thirty-two".