154502042 has 16 divisors (see below), whose sum is σ = 234861120. Its totient is φ = 76218912.

The previous prime is 154502039. The next prime is 154502059. The reversal of 154502042 is 240205451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 154501999 and 154502017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156683 + ... + 157665.

It is an arithmetic number, because the mean of its divisors is an integer number (14678820).

Almost surely, 2^154502042 is an apocalyptic number.

154502042 is a deficient number, since it is larger than the sum of its proper divisors (80359078).

154502042 is an equidigital number, since it uses as much as digits as its factorization.

154502042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 154502042 is about 12429.8850356711. The cubic root of 154502042 is about 536.5926767243.

Adding to 154502042 its reverse (240205451), we get a palindrome (394707493).

The spelling of 154502042 in words is "one hundred fifty-four million, five hundred two thousand, forty-two".