148799538 has 32 divisors (see below), whose sum is σ = 350118720. Its totient is φ = 46681920.

The previous prime is 148799531. The next prime is 148799543. The reversal of 148799538 is 835997841.

148799538 is a `hidden beast` number, since 14 + 8 + 7 + 99 + 538 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (148799531) 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, 80128 + ... + 81963.

It is an arithmetic number, because the mean of its divisors is an integer number (10941210).

Almost surely, 2^148799538 is an apocalyptic number.

148799538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

148799538 is an abundant number, since it is smaller than the sum of its proper divisors (201319182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148799538 is a wasteful number, since it uses less digits than its factorization.

148799538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162119 (or 162113 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 148799538 is about 12198.3416085958. The cubic root of 148799538 is about 529.9080628473.

It can be divided in two parts, 1487 and 99538, that added together give a triangular number (101025 = T₄₄₉).

The spelling of 148799538 in words is "one hundred forty-eight million, seven hundred ninety-nine thousand, five hundred thirty-eight".