120674821 has 4 divisors (see below), whose sum is σ = 121474144. Its totient is φ = 119875500.

The previous prime is 120674761. The next prime is 120674837. The reversal of 120674821 is 128476021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 128476021 = 17 ⋅7557413.

It is a cyclic number.

It is not a de Polignac number, because 120674821 - 2¹⁹ = 120150533 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 (120674861) 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, 399435 + ... + 399736.

It is an arithmetic number, because the mean of its divisors is an integer number (30368536).

Almost surely, 2^120674821 is an apocalyptic number.

It is an amenable number.

120674821 is a deficient number, since it is larger than the sum of its proper divisors (799323).

120674821 is an equidigital number, since it uses as much as digits as its factorization.

120674821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799322.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 120674821 is about 10985.2091923641. The cubic root of 120674821 is about 494.1652714015.

The spelling of 120674821 in words is "one hundred twenty million, six hundred seventy-four thousand, eight hundred twenty-one".