140042011 has 4 divisors (see below), whose sum is σ = 141144832. Its totient is φ = 138939192.

The previous prime is 140041969. The next prime is 140042029. The reversal of 140042011 is 110240041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140042011 - 2⁷ = 140041883 is a prime.

It is a super-2 number, since 2×140042011² = 39223529689848242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140041982 and 140042000.

It is not an unprimeable number, because it can be changed into a prime (140042411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551220 + ... + 551473.

It is an arithmetic number, because the mean of its divisors is an integer number (35286208).

Almost surely, 2^140042011 is an apocalyptic number.

140042011 is a deficient number, since it is larger than the sum of its proper divisors (1102821).

140042011 is a wasteful number, since it uses less digits than its factorization.

140042011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102820.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 140042011 is about 11833.9347218075. The cubic root of 140042011 is about 519.3013435312.

Adding to 140042011 its reverse (110240041), we get a palindrome (250282052).

The spelling of 140042011 in words is "one hundred forty million, forty-two thousand, eleven".