148144644 has 72 divisors (see below), whose sum is σ = 396952920. Its totient is φ = 46502400.

The previous prime is 148144627. The next prime is 148144663. The reversal of 148144644 is 446441841.

148144644 is a `hidden beast` number, since 1 + 4 + 8 + 1 + 4 + 4 + 644 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 230400 + 147914244 = 480^2 + 12162^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 148144599 and 148144608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41074 + ... + 44534.

It is an arithmetic number, because the mean of its divisors is an integer number (5513235).

Almost surely, 2^148144644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148144644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198476460).

148144644 is an abundant number, since it is smaller than the sum of its proper divisors (248808276).

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

148144644 is a wasteful number, since it uses less digits than its factorization.

148144644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541 (or 3536 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 148144644 is about 12171.4684405786. The cubic root of 148144644 is about 529.1295120902.

The spelling of 148144644 in words is "one hundred forty-eight million, one hundred forty-four thousand, six hundred forty-four".