140652447 has 12 divisors (see below), whose sum is σ = 203072904. Its totient is φ = 86555040.

The previous prime is 140652439. The next prime is 140652467. The reversal of 140652447 is 744256041.

It is not a de Polignac number, because 140652447 - 2³ = 140652439 is a prime.

It is a super-2 number, since 2×140652447² = 39566221694175618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140652437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138204 + ... + 139217.

It is an arithmetic number, because the mean of its divisors is an integer number (16922742).

Almost surely, 2^140652447 is an apocalyptic number.

140652447 is a deficient number, since it is larger than the sum of its proper divisors (62420457).

140652447 is a wasteful number, since it uses less digits than its factorization.

140652447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277450 (or 277437 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 140652447 is about 11859.6984363010. The cubic root of 140652447 is about 520.0547858944.

The spelling of 140652447 in words is "one hundred forty million, six hundred fifty-two thousand, four hundred forty-seven".