120521453 has 4 divisors (see below), whose sum is σ = 129792348. Its totient is φ = 111250560.

The previous prime is 120521437. The next prime is 120521473. The reversal of 120521453 is 354125021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13564489 + 106956964 = 3683^2 + 10342^2 .

It is a cyclic number.

It is not a de Polignac number, because 120521453 - 2⁴ = 120521437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120521413) 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, 4635428 + ... + 4635453.

It is an arithmetic number, because the mean of its divisors is an integer number (32448087).

Almost surely, 2^120521453 is an apocalyptic number.

120521453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120521453 is a deficient number, since it is larger than the sum of its proper divisors (9270895).

120521453 is an equidigital number, since it uses as much as digits as its factorization.

120521453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270894.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 120521453 is about 10978.2263139361. The cubic root of 120521453 is about 493.9558345344.

Adding to 120521453 its reverse (354125021), we get a palindrome (474646474).

The spelling of 120521453 in words is "one hundred twenty million, five hundred twenty-one thousand, four hundred fifty-three".