140236022 has 4 divisors (see below), whose sum is σ = 210354036. Its totient is φ = 70118010.

The previous prime is 140236013. The next prime is 140236027. The reversal of 140236022 is 220632041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220632041 = 7 ⋅31518863.

It is a super-2 number, since 2×140236022² = 39332283732768968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140235985 and 140236003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140236027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35059004 + ... + 35059007.

It is an arithmetic number, because the mean of its divisors is an integer number (52588509).

Almost surely, 2^140236022 is an apocalyptic number.

140236022 is a deficient number, since it is larger than the sum of its proper divisors (70118014).

140236022 is an equidigital number, since it uses as much as digits as its factorization.

140236022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70118013.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140236022 is about 11842.1291159994. The cubic root of 140236022 is about 519.5410422767.

Adding to 140236022 its reverse (220632041), we get a palindrome (360868063).

The spelling of 140236022 in words is "one hundred forty million, two hundred thirty-six thousand, twenty-two".