141306640 has 20 divisors (see below), whose sum is σ = 328538124. Its totient is φ = 56522624.

The previous prime is 141306569. The next prime is 141306673. The reversal of 141306640 is 46603141.

It can be written as a sum of positive squares in 2 ways, for example, as 16224784 + 125081856 = 4028^2 + 11184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883087 + ... + 883246.

Almost surely, 2^141306640 is an apocalyptic number.

141306640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141306640 is an abundant number, since it is smaller than the sum of its proper divisors (187231484).

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

141306640 is a wasteful number, since it uses less digits than its factorization.

141306640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766346 (or 1766340 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 141306640 is about 11887.2469478849. The cubic root of 141306640 is about 520.8598201072.

Adding to 141306640 its reverse (46603141), we get a palindrome (187909781).

The spelling of 141306640 in words is "one hundred forty-one million, three hundred six thousand, six hundred forty".