40145148 has 36 divisors (see below), whose sum is σ = 104224120. Its totient is φ = 13019616.

The previous prime is 40145113. The next prime is 40145167. The reversal of 40145148 is 84154104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×40145148² = 3223265815883808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13738 + ... + 16401.

Almost surely, 2^40145148 is an apocalyptic number.

It is an amenable number.

40145148 is an abundant number, since it is smaller than the sum of its proper divisors (64078972).

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

40145148 is a wasteful number, since it uses less digits than its factorization.

40145148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30186 (or 30181 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 40145148 is about 6336.0198863324. The cubic root of 40145148 is about 342.4083559662.

The spelling of 40145148 in words is "forty million, one hundred forty-five thousand, one hundred forty-eight".