140458389 has 4 divisors (see below), whose sum is σ = 187277856. Its totient is φ = 93638924.

The previous prime is 140458387. The next prime is 140458411. The reversal of 140458389 is 983854041.

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 140458389 - 2¹ = 140458387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140458389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140458387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23409729 + ... + 23409734.

It is an arithmetic number, because the mean of its divisors is an integer number (46819464).

Almost surely, 2^140458389 is an apocalyptic number.

It is an amenable number.

140458389 is a deficient number, since it is larger than the sum of its proper divisors (46819467).

140458389 is an equidigital number, since it uses as much as digits as its factorization.

140458389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46819466.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 140458389 is about 11851.5142070539. The cubic root of 140458389 is about 519.8155028416.

The spelling of 140458389 in words is "one hundred forty million, four hundred fifty-eight thousand, three hundred eighty-nine".