140706999 has 12 divisors (see below), whose sum is σ = 203499400. Its totient is φ = 93686544.

The previous prime is 140706949. The next prime is 140707001. The reversal of 140706999 is 999607041.

It is not a de Polignac number, because 140706999 - 2⁸ = 140706743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140706919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1969 + ... + 16890.

Almost surely, 2^140706999 is an apocalyptic number.

140706999 is a deficient number, since it is larger than the sum of its proper divisors (62792401).

140706999 is a wasteful number, since it uses less digits than its factorization.

140706999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19694 (or 19691 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 140706999 is about 11861.9981031865. The cubic root of 140706999 is about 520.1220115566.

Adding to 140706999 its sum of digits (45), we get a square (140707044 = 11862²).

The spelling of 140706999 in words is "one hundred forty million, seven hundred six thousand, nine hundred ninety-nine".