141887640 has 32 divisors (see below), whose sum is σ = 425663280. Its totient is φ = 37836672.

The previous prime is 141887639. The next prime is 141887657. The reversal of 141887640 is 46788141.

It is a congruent number.

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, 591079 + ... + 591318.

Almost surely, 2^141887640 is an apocalyptic number.

141887640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141887640 is an abundant number, since it is smaller than the sum of its proper divisors (283775640).

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

141887640 is a wasteful number, since it uses less digits than its factorization.

141887640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182411 (or 1182407 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 141887640 is about 11911.6598339610. The cubic root of 141887640 is about 521.5727041527.

The spelling of 141887640 in words is "one hundred forty-one million, eight hundred eighty-seven thousand, six hundred forty".