140222331 has 24 divisors (see below), whose sum is σ = 209688960. Its totient is φ = 90201600.

The previous prime is 140222321. The next prime is 140222333. The reversal of 140222331 is 133222041.

It is not a de Polignac number, because 140222331 - 2¹⁰ = 140221307 is a prime.

It is a super-2 number, since 2×140222331² = 39324604222147122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140222333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150475 + ... + 151403.

It is an arithmetic number, because the mean of its divisors is an integer number (8737040).

Almost surely, 2^140222331 is an apocalyptic number.

140222331 is a deficient number, since it is larger than the sum of its proper divisors (69466629).

140222331 is a wasteful number, since it uses less digits than its factorization.

140222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140222331 is about 11841.5510386098. The cubic root of 140222331 is about 519.5241344290.

Adding to 140222331 its reverse (133222041), we get a palindrome (273444372).

The spelling of 140222331 in words is "one hundred forty million, two hundred twenty-two thousand, three hundred thirty-one".