149816042 has 16 divisors (see below), whose sum is σ = 230303040. Its totient is φ = 73053792.

The previous prime is 149816041. The next prime is 149816063. The reversal of 149816042 is 240618941.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 149815993 and 149816011.

It is not an unprimeable number, because it can be changed into a prime (149816041) by changing a digit.

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, 96323 + ... + 97865.

It is an arithmetic number, because the mean of its divisors is an integer number (14393940).

Almost surely, 2^149816042 is an apocalyptic number.

149816042 is a deficient number, since it is larger than the sum of its proper divisors (80486998).

149816042 is a wasteful number, since it uses less digits than its factorization.

149816042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 149816042 is about 12239.9363560437. The cubic root of 149816042 is about 531.1119906882. Note that the first 3 decimals are identical.

The spelling of 149816042 in words is "one hundred forty-nine million, eight hundred sixteen thousand, forty-two".