140607651 has 4 divisors (see below), whose sum is σ = 187476872. Its totient is φ = 93738432.

The previous prime is 140607637. The next prime is 140607703. The reversal of 140607651 is 156706041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156706041 = 3 ⋅52235347.

It is not a de Polignac number, because 140607651 - 2⁶ = 140607587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140607151) 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, 23434606 + ... + 23434611.

It is an arithmetic number, because the mean of its divisors is an integer number (46869218).

Almost surely, 2^140607651 is an apocalyptic number.

140607651 is a deficient number, since it is larger than the sum of its proper divisors (46869221).

140607651 is an equidigital number, since it uses as much as digits as its factorization.

140607651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46869220.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 140607651 is about 11857.8097050003. The cubic root of 140607651 is about 519.9995697728. Note that the first 3 decimals are identical.

The spelling of 140607651 in words is "one hundred forty million, six hundred seven thousand, six hundred fifty-one".