140077321 has 4 divisors (see below), whose sum is σ = 140103700. Its totient is φ = 140050944.

The previous prime is 140077319. The next prime is 140077339. The reversal of 140077321 is 123770041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123770041 = 2111 ⋅58631.

It can be written as a sum of positive squares in 2 ways, for example, as 124077321 + 16000000 = 11139^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 140077321 - 2¹ = 140077319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140077351) 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 3 ways as a sum of consecutive naturals, for example, 2136 + ... + 16873.

It is an arithmetic number, because the mean of its divisors is an integer number (35025925).

Almost surely, 2^140077321 is an apocalyptic number.

It is an amenable number.

140077321 is a deficient number, since it is larger than the sum of its proper divisors (26379).

140077321 is an equidigital number, since it uses as much as digits as its factorization.

140077321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26378.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 140077321 is about 11835.4265237887. The cubic root of 140077321 is about 519.3449851722.

The spelling of 140077321 in words is "one hundred forty million, seventy-seven thousand, three hundred twenty-one".