145671140 has 24 divisors (see below), whose sum is σ = 306370680. Its totient is φ = 58180608.

The previous prime is 145671133. The next prime is 145671161. The reversal of 145671140 is 41176541.

145671140 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 4 ways, for example, as 131044 + 145540096 = 362^2 + 12064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9044 + ... + 19316.

It is an arithmetic number, because the mean of its divisors is an integer number (12765445).

Almost surely, 2^145671140 is an apocalyptic number.

145671140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145671140 is an abundant number, since it is smaller than the sum of its proper divisors (160699540).

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

145671140 is a wasteful number, since it uses less digits than its factorization.

145671140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991 (or 10989 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 145671140 is about 12069.4299782550. The cubic root of 145671140 is about 526.1680900042.

The spelling of 145671140 in words is "one hundred forty-five million, six hundred seventy-one thousand, one hundred forty".