140626811 has 4 divisors (see below), whose sum is σ = 151444272. Its totient is φ = 129809352.

The previous prime is 140626799. The next prime is 140626823. The reversal of 140626811 is 118626041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118626041 = 269 ⋅440989.

It is an interprime number because it is at equal distance from previous prime (140626799) and next prime (140626823).

It is a cyclic number.

It is not a de Polignac number, because 140626811 - 2¹⁰ = 140625787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140626841) 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, 5408711 + ... + 5408736.

It is an arithmetic number, because the mean of its divisors is an integer number (37861068).

Almost surely, 2^140626811 is an apocalyptic number.

140626811 is a deficient number, since it is larger than the sum of its proper divisors (10817461).

140626811 is a wasteful number, since it uses less digits than its factorization.

140626811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10817460.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 140626811 is about 11858.6175838502. The cubic root of 140626811 is about 520.0231880685.

The spelling of 140626811 in words is "one hundred forty million, six hundred twenty-six thousand, eight hundred eleven".