140634851 has 6 divisors (see below), whose sum is σ = 163595700. Its totient is φ = 120544116.

The previous prime is 140634841. The next prime is 140634853. The reversal of 140634851 is 158436041.

140634851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140634851 - 2⁶ = 140634787 is a prime.

It is a super-2 number, since 2×140634851² = 39556322631584402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140634853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1435001 + ... + 1435098.

It is an arithmetic number, because the mean of its divisors is an integer number (27265950).

Almost surely, 2^140634851 is an apocalyptic number.

140634851 is a deficient number, since it is larger than the sum of its proper divisors (22960849).

140634851 is an equidigital number, since it uses as much as digits as its factorization.

140634851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870113 (or 2870106 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 140634851 is about 11858.9565729874. The cubic root of 140634851 is about 520.0330982384.

The spelling of 140634851 in words is "one hundred forty million, six hundred thirty-four thousand, eight hundred fifty-one".