140200451 has 4 divisors (see below), whose sum is σ = 140234304. Its totient is φ = 140166600.

The previous prime is 140200447. The next prime is 140200469. The reversal of 140200451 is 154002041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154002041 = 73 ⋅2109617.

It is a cyclic number.

It is not a de Polignac number, because 140200451 - 2² = 140200447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140200351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9680 + ... + 19341.

It is an arithmetic number, because the mean of its divisors is an integer number (35058576).

Almost surely, 2^140200451 is an apocalyptic number.

140200451 is a deficient number, since it is larger than the sum of its proper divisors (33853).

140200451 is an equidigital number, since it uses as much as digits as its factorization.

140200451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33852.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 140200451 is about 11840.6271371072. The cubic root of 140200451 is about 519.4971112027.

Adding to 140200451 its reverse (154002041), we get a palindrome (294202492).

The spelling of 140200451 in words is "one hundred forty million, two hundred thousand, four hundred fifty-one".