140550451 has 4 divisors (see below), whose sum is σ = 140661792. Its totient is φ = 140439112.

The previous prime is 140550427. The next prime is 140550463. The reversal of 140550451 is 154055041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140550451 - 2¹⁵ = 140517683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140550481) 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, 53755 + ... + 56308.

It is an arithmetic number, because the mean of its divisors is an integer number (35165448).

Almost surely, 2^140550451 is an apocalyptic number.

140550451 is a deficient number, since it is larger than the sum of its proper divisors (111341).

140550451 is a wasteful number, since it uses less digits than its factorization.

140550451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111340.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 140550451 is about 11855.3975471091. The cubic root of 140550451 is about 519.9290472718.

The spelling of 140550451 in words is "one hundred forty million, five hundred fifty thousand, four hundred fifty-one".