140998787 has 4 divisors (see below), whose sum is σ = 141045336. Its totient is φ = 140952240.

The previous prime is 140998777. The next prime is 140998813. The reversal of 140998787 is 787899041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140998787 - 2⁶ = 140998723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140998777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18389 + ... + 24902.

It is an arithmetic number, because the mean of its divisors is an integer number (35261334).

Almost surely, 2^140998787 is an apocalyptic number.

140998787 is a deficient number, since it is larger than the sum of its proper divisors (46549).

140998787 is an equidigital number, since it uses as much as digits as its factorization.

140998787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46548.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 140998787 is about 11874.2910104141. The cubic root of 140998787 is about 520.4812937923.

The spelling of 140998787 in words is "one hundred forty million, nine hundred ninety-eight thousand, seven hundred eighty-seven".