40148 has 6 divisors (see below), whose sum is σ = 70266. Its totient is φ = 20072.

The previous prime is 40129. The next prime is 40151. The reversal of 40148 is 84104.

It is a happy number.

40148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31684 + 8464 = 178^2 + 92^2 .

It is a super-2 number, since 2×40148² = 3223723808, which contains 22 as substring.

40148 is a modest number, since divided by 148 gives 40 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40148.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015 + ... + 5022.

It is an arithmetic number, because the mean of its divisors is an integer number (11711).

2⁴⁰¹⁴⁸ is an apocalyptic number.

It is an amenable number.

40148 is a deficient number, since it is larger than the sum of its proper divisors (30118).

40148 is a wasteful number, since it uses less digits than its factorization.

40148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10041 (or 10039 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 40148 is about 200.3696583817. The cubic root of 40148 is about 34.2416464256.

Subtracting 40148 from its reverse (84104), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 40148 in words is "forty thousand, one hundred forty-eight".