140740673 has 4 divisors (see below), whose sum is σ = 142723008. Its totient is φ = 138758340.

The previous prime is 140740667. The next prime is 140740687. The reversal of 140740673 is 376047041.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 376047041 = 293 ⋅1283437.

It is a cyclic number.

It is not a de Polignac number, because 140740673 - 2¹⁴ = 140724289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140740643) 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, 991061 + ... + 991202.

It is an arithmetic number, because the mean of its divisors is an integer number (35680752).

Almost surely, 2^140740673 is an apocalyptic number.

It is an amenable number.

140740673 is a deficient number, since it is larger than the sum of its proper divisors (1982335).

140740673 is an equidigital number, since it uses as much as digits as its factorization.

140740673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982334.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 140740673 is about 11863.4174250087. The cubic root of 140740673 is about 520.1635001150.

The spelling of 140740673 in words is "one hundred forty million, seven hundred forty thousand, six hundred seventy-three".