140721334 has 32 divisors (see below), whose sum is σ = 241274880. Its totient is φ = 61018272.

The previous prime is 140721299. The next prime is 140721341. The reversal of 140721334 is 433127041.

140721334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140721299 and 140721308.

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, 61617 + ... + 63859.

It is an arithmetic number, because the mean of its divisors is an integer number (7539840).

Almost surely, 2^140721334 is an apocalyptic number.

140721334 is a deficient number, since it is larger than the sum of its proper divisors (100553546).

140721334 is a wasteful number, since it uses less digits than its factorization.

140721334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 140721334 is about 11862.6023283258. The cubic root of 140721334 is about 520.1396740181.

Adding to 140721334 its reverse (433127041), we get a palindrome (573848375).

The spelling of 140721334 in words is "one hundred forty million, seven hundred twenty-one thousand, three hundred thirty-four".