140331522 has 16 divisors (see below), whose sum is σ = 290341440. Its totient is φ = 45164112.

The previous prime is 140331517. The next prime is 140331539. The reversal of 140331522 is 225133041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403078 + ... + 403425.

It is an arithmetic number, because the mean of its divisors is an integer number (18146340).

Almost surely, 2^140331522 is an apocalyptic number.

140331522 is an abundant number, since it is smaller than the sum of its proper divisors (150009918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140331522 is a wasteful number, since it uses less digits than its factorization.

140331522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806537.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 140331522 is about 11846.1606438542. The cubic root of 140331522 is about 519.6589504297.

Adding to 140331522 its reverse (225133041), we get a palindrome (365464563).

The spelling of 140331522 in words is "one hundred forty million, three hundred thirty-one thousand, five hundred twenty-two".