140321415 has 16 divisors (see below), whose sum is σ = 241784928. Its totient is φ = 69081216.

The previous prime is 140321399. The next prime is 140321437. The reversal of 140321415 is 514123041.

It is not a de Polignac number, because 140321415 - 2⁴ = 140321399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140321391 and 140321400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359604 + ... + 359993.

It is an arithmetic number, because the mean of its divisors is an integer number (15111558).

Almost surely, 2^140321415 is an apocalyptic number.

140321415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140321415 is a deficient number, since it is larger than the sum of its proper divisors (101463513).

140321415 is a wasteful number, since it uses less digits than its factorization.

140321415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719618.

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

The square root of 140321415 is about 11845.7340422618. The cubic root of 140321415 is about 519.6464744513.

Adding to 140321415 its reverse (514123041), we get a palindrome (654444456).

The spelling of 140321415 in words is "one hundred forty million, three hundred twenty-one thousand, four hundred fifteen".