148538945 has 16 divisors (see below), whose sum is σ = 196940160. Its totient is φ = 106977024.

The previous prime is 148538927. The next prime is 148538947. The reversal of 148538945 is 549835841.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 148538945 - 2¹⁸ = 148276801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148538945.

It is not an unprimeable number, because it can be changed into a prime (148538947) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36035 + ... + 39944.

It is an arithmetic number, because the mean of its divisors is an integer number (12308760).

Almost surely, 2^148538945 is an apocalyptic number.

It is an amenable number.

148538945 is a deficient number, since it is larger than the sum of its proper divisors (48401215).

148538945 is a wasteful number, since it uses less digits than its factorization.

148538945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76024.

The product of its digits is 691200, while the sum is 47.

The square root of 148538945 is about 12187.6554349063. The cubic root of 148538945 is about 529.5985389853.

The spelling of 148538945 in words is "one hundred forty-eight million, five hundred thirty-eight thousand, nine hundred forty-five".