140988993 has 16 divisors (see below), whose sum is σ = 190396800. Its totient is φ = 92793600.

The previous prime is 140988977. The next prime is 140989001. The reversal of 140988993 is 399889041.

It is a happy number.

It is not a de Polignac number, because 140988993 - 2⁴ = 140988977 is a prime.

It is a super-2 number, since 2×140988993² = 39755792294308098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140948993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116793 + ... + 117993.

It is an arithmetic number, because the mean of its divisors is an integer number (11899800).

Almost surely, 2^140988993 is an apocalyptic number.

It is an amenable number.

140988993 is a deficient number, since it is larger than the sum of its proper divisors (49407807).

140988993 is a wasteful number, since it uses less digits than its factorization.

140988993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 140988993 is about 11873.8785996826. The cubic root of 140988993 is about 520.4692423604.

The spelling of 140988993 in words is "one hundred forty million, nine hundred eighty-eight thousand, nine hundred ninety-three".