120340451 has 8 divisors (see below), whose sum is σ = 150034944. Its totient is φ = 93771720.

The previous prime is 120340421. The next prime is 120340457. The reversal of 120340451 is 154043021.

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

It is not a de Polignac number, because 120340451 - 2¹⁴ = 120324067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120340457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781355 + ... + 781508.

It is an arithmetic number, because the mean of its divisors is an integer number (18754368).

Almost surely, 2^120340451 is an apocalyptic number.

120340451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120340451 is a deficient number, since it is larger than the sum of its proper divisors (29694493).

120340451 is a wasteful number, since it uses less digits than its factorization.

120340451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562881.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 120340451 is about 10969.9795350766. The cubic root of 120340451 is about 493.7084324137.

Adding to 120340451 its reverse (154043021), we get a palindrome (274383472).

The spelling of 120340451 in words is "one hundred twenty million, three hundred forty thousand, four hundred fifty-one".