154220132 has 24 divisors (see below), whose sum is σ = 297343872. Its totient is φ = 69404000.

The previous prime is 154220123. The next prime is 154220153. The reversal of 154220132 is 231022451.

It is a super-2 number, since 2×154220132² = 47567698228194848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12908 + ... + 21795.

It is an arithmetic number, because the mean of its divisors is an integer number (12389328).

Almost surely, 2^154220132 is an apocalyptic number.

It is an amenable number.

154220132 is a deficient number, since it is larger than the sum of its proper divisors (143123740).

154220132 is a wasteful number, since it uses less digits than its factorization.

154220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34819 (or 34817 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 154220132 is about 12418.5398497569. The cubic root of 154220132 is about 536.2661159064.

Adding to 154220132 its reverse (231022451), we get a palindrome (385242583).

The spelling of 154220132 in words is "one hundred fifty-four million, two hundred twenty thousand, one hundred thirty-two".