140240451 has 8 divisors (see below), whose sum is σ = 201370960. Its totient is φ = 86301792.

The previous prime is 140240449. The next prime is 140240479. The reversal of 140240451 is 154042041.

It is a happy number.

140240451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140240451 - 2¹ = 140240449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140240431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1797916 + ... + 1797993.

It is an arithmetic number, because the mean of its divisors is an integer number (25171370).

Almost surely, 2^140240451 is an apocalyptic number.

140240451 is a deficient number, since it is larger than the sum of its proper divisors (61130509).

140240451 is a wasteful number, since it uses less digits than its factorization.

140240451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595925.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 140240451 is about 11842.3161163685. The cubic root of 140240451 is about 519.5465116823.

Adding to 140240451 its reverse (154042041), we get a palindrome (294282492).

The spelling of 140240451 in words is "one hundred forty million, two hundred forty thousand, four hundred fifty-one".