149345546 has 32 divisors (see below), whose sum is σ = 262327680. Its totient is φ = 62447616.

The previous prime is 149345543. The next prime is 149345557. The reversal of 149345546 is 645543941.

It is a super-2 number, since 2×149345546² = 44608184220076232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (149345543) 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 15 ways as a sum of consecutive naturals, for example, 105290 + ... + 106698.

It is an arithmetic number, because the mean of its divisors is an integer number (8197740).

Almost surely, 2^149345546 is an apocalyptic number.

149345546 is a deficient number, since it is larger than the sum of its proper divisors (112982134).

149345546 is a wasteful number, since it uses less digits than its factorization.

149345546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its digits is 259200, while the sum is 41.

The square root of 149345546 is about 12220.7015346910. The cubic root of 149345546 is about 530.5554234263. Note that the first 3 decimals are identical.

The spelling of 149345546 in words is "one hundred forty-nine million, three hundred forty-five thousand, five hundred forty-six".