140838722 has 4 divisors (see below), whose sum is σ = 211258086. Its totient is φ = 70419360.

The previous prime is 140838721. The next prime is 140838739. The reversal of 140838722 is 227838041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227838041 = 863 ⋅264007.

It can be written as a sum of positive squares in only one way, i.e., 115326121 + 25512601 = 10739^2 + 5051^2 .

It is a super-2 number, since 2×140838722² = 39671091229186568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140838721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35209679 + ... + 35209682.

Almost surely, 2^140838722 is an apocalyptic number.

140838722 is a deficient number, since it is larger than the sum of its proper divisors (70419364).

140838722 is an equidigital number, since it uses as much as digits as its factorization.

140838722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70419363.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 140838722 is about 11867.5491151290. The cubic root of 140838722 is about 520.2842651856.

The spelling of 140838722 in words is "one hundred forty million, eight hundred thirty-eight thousand, seven hundred twenty-two".