141999987 has 8 divisors (see below), whose sum is σ = 190088640. Its totient is φ = 94289000.

The previous prime is 141999971. The next prime is 142000003. The reversal of 141999987 is 789999141.

It is an interprime number because it is at equal distance from previous prime (141999971) and next prime (142000003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 141999987 - 2⁴ = 141999971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (141999967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93537 + ... + 95042.

It is an arithmetic number, because the mean of its divisors is an integer number (23761080).

Almost surely, 2^141999987 is an apocalyptic number.

141999987 is a deficient number, since it is larger than the sum of its proper divisors (48088653).

141999987 is a wasteful number, since it uses less digits than its factorization.

141999987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188833.

The product of its digits is 1469664, while the sum is 57.

The square root of 141999987 is about 11916.3747423451. The cubic root of 141999987 is about 521.7103287069.

The spelling of 141999987 in words is "one hundred forty-one million, nine hundred ninety-nine thousand, nine hundred eighty-seven".