145835540 has 48 divisors (see below), whose sum is σ = 311583888. Its totient is φ = 57329664.

The previous prime is 145835513. The next prime is 145835561. The reversal of 145835540 is 45538541.

145835540 is digitally balanced in base 3, 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 8 ways, for example, as 2650384 + 143185156 = 1628^2 + 11966^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145835540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390794 + ... + 391166.

It is an arithmetic number, because the mean of its divisors is an integer number (6491331).

Almost surely, 2^145835540 is an apocalyptic number.

145835540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145835540 is an abundant number, since it is smaller than the sum of its proper divisors (165748348).

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

145835540 is a wasteful number, since it uses less digits than its factorization.

145835540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 145835540 is about 12076.2386528256. The cubic root of 145835540 is about 526.3659546675.

The spelling of 145835540 in words is "one hundred forty-five million, eight hundred thirty-five thousand, five hundred forty".