140450641 has 4 divisors (see below), whose sum is σ = 147842800. Its totient is φ = 133058484.

The previous prime is 140450593. The next prime is 140450647. The reversal of 140450641 is 146054041.

140450641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146054041 = 7 ⋅20864863.

It is a cyclic number.

It is not a de Polignac number, because 140450641 - 2⁹ = 140450129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140450647) 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, 3696051 + ... + 3696088.

It is an arithmetic number, because the mean of its divisors is an integer number (36960700).

Almost surely, 2^140450641 is an apocalyptic number.

It is an amenable number.

140450641 is a deficient number, since it is larger than the sum of its proper divisors (7392159).

140450641 is an equidigital number, since it uses as much as digits as its factorization.

140450641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392158.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 140450641 is about 11851.1873244836. The cubic root of 140450641 is about 519.8059446026.

The spelling of 140450641 in words is "one hundred forty million, four hundred fifty thousand, six hundred forty-one".