120621004 has 24 divisors (see below), whose sum is σ = 245796768. Its totient is φ = 50718720.

The previous prime is 120620989. The next prime is 120621019. The reversal of 120621004 is 400126021.

It is an interprime number because it is at equal distance from previous prime (120620989) and next prime (120621019).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39157 + ... + 42124.

It is an arithmetic number, because the mean of its divisors is an integer number (10241532).

Almost surely, 2^120621004 is an apocalyptic number.

120621004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

120621004 is an abundant number, since it is smaller than the sum of its proper divisors (125175764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120621004 is a wasteful number, since it uses less digits than its factorization.

120621004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81345 (or 81343 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120621004 is about 10982.7593982569. The cubic root of 120621004 is about 494.0917999941.

Adding to 120621004 its reverse (400126021), we get a palindrome (520747025).

The spelling of 120621004 in words is "one hundred twenty million, six hundred twenty-one thousand, four".