140940949 has 4 divisors (see below), whose sum is σ = 141004864. Its totient is φ = 140877036.

The previous prime is 140940901. The next prime is 140940959. The reversal of 140940949 is 949049041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140940949 - 2¹¹ = 140938901 is a prime.

It is a super-2 number, since 2×140940949² = 39728702210041202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140940959) 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, 28527 + ... + 33100.

It is an arithmetic number, because the mean of its divisors is an integer number (35251216).

Almost surely, 2^140940949 is an apocalyptic number.

It is an amenable number.

140940949 is a deficient number, since it is larger than the sum of its proper divisors (63915).

140940949 is an equidigital number, since it uses as much as digits as its factorization.

140940949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63914.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 140940949 is about 11871.8553309919. The cubic root of 140940949 is about 520.4101165507.

The spelling of 140940949 in words is "one hundred forty million, nine hundred forty thousand, nine hundred forty-nine".