140355321 has 8 divisors (see below), whose sum is σ = 193177344. Its totient is φ = 90551760.

The previous prime is 140355307. The next prime is 140355359. The reversal of 140355321 is 123553041.

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

It is not a de Polignac number, because 140355321 - 2¹¹ = 140353273 is a prime.

It is a super-2 number, since 2×140355321² = 39399232266026082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140355291 and 140355300.

It is not an unprimeable number, because it can be changed into a prime (140355221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754506 + ... + 754691.

It is an arithmetic number, because the mean of its divisors is an integer number (24147168).

Almost surely, 2^140355321 is an apocalyptic number.

It is an amenable number.

140355321 is a deficient number, since it is larger than the sum of its proper divisors (52822023).

140355321 is a wasteful number, since it uses less digits than its factorization.

140355321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509231.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 140355321 is about 11847.1651039394. The cubic root of 140355321 is about 519.6883253084.

The spelling of 140355321 in words is "one hundred forty million, three hundred fifty-five thousand, three hundred twenty-one".