141623640 has 80 divisors (see below), whose sum is σ = 476023680. Its totient is φ = 37765440.

The previous prime is 141623623. The next prime is 141623681. The reversal of 141623640 is 46326141.

141623640 is a `hidden beast` number, since 1 + 4 + 16 + 2 + 3 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18616 + ... + 25095.

It is an arithmetic number, because the mean of its divisors is an integer number (5950296).

Almost surely, 2^141623640 is an apocalyptic number.

141623640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141623640 is an abundant number, since it is smaller than the sum of its proper divisors (334400040).

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

141623640 is a wasteful number, since it uses less digits than its factorization.

141623640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43734 (or 43721 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 141623640 is about 11900.5730954438. The cubic root of 141623640 is about 521.2490192001.

Adding to 141623640 its reverse (46326141), we get a palindrome (187949781).

The spelling of 141623640 in words is "one hundred forty-one million, six hundred twenty-three thousand, six hundred forty".