148518444 has 48 divisors (see below), whose sum is σ = 358219008. Its totient is φ = 47855808.

The previous prime is 148518437. The next prime is 148518493. The reversal of 148518444 is 444815841.

It is a happy number.

It is a super-2 number, since 2×148518444² = 44115456416362272, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 73147 + ... + 75149.

It is an arithmetic number, because the mean of its divisors is an integer number (7462896).

Almost surely, 2^148518444 is an apocalyptic number.

It is an amenable number.

148518444 is an abundant number, since it is smaller than the sum of its proper divisors (209700564).

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

148518444 is a wasteful number, since it uses less digits than its factorization.

148518444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2212 counting only the distinct ones).

The product of its digits is 81920, while the sum is 39.

The square root of 148518444 is about 12186.8143499440. The cubic root of 148518444 is about 529.5741732111.

The spelling of 148518444 in words is "one hundred forty-eight million, five hundred eighteen thousand, four hundred forty-four".