140451321 has 8 divisors (see below), whose sum is σ = 193726080. Its totient is φ = 90405392.

The previous prime is 140451313. The next prime is 140451323. The reversal of 140451321 is 123154041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140451321 - 2³ = 140451313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140451323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807105 + ... + 807278.

It is an arithmetic number, because the mean of its divisors is an integer number (24215760).

Almost surely, 2^140451321 is an apocalyptic number.

It is an amenable number.

140451321 is a deficient number, since it is larger than the sum of its proper divisors (53274759).

140451321 is a wasteful number, since it uses less digits than its factorization.

140451321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614415.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140451321 is about 11851.2160135574. The cubic root of 140451321 is about 519.8067834915.

It can be divided in two parts, 1404 and 51321, that added together give a palindrome (52725).

The spelling of 140451321 in words is "one hundred forty million, four hundred fifty-one thousand, three hundred twenty-one".