154145642 has 24 divisors (see below), whose sum is σ = 268889376. Its totient is φ = 64922184.

The previous prime is 154145633. The next prime is 154145653. The reversal of 154145642 is 246541451.

It is a junction number, because it is equal to n+sod(n) for n = 154145599 and 154145608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47153 + ... + 50315.

It is an arithmetic number, because the mean of its divisors is an integer number (11203724).

Almost surely, 2^154145642 is an apocalyptic number.

154145642 is a deficient number, since it is larger than the sum of its proper divisors (114743734).

154145642 is an equidigital number, since it uses as much as digits as its factorization.

154145642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290 (or 3231 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 154145642 is about 12415.5403426512. The cubic root of 154145642 is about 536.1797612139.

The spelling of 154145642 in words is "one hundred fifty-four million, one hundred forty-five thousand, six hundred forty-two".