120521404 has 6 divisors (see below), whose sum is σ = 210912464. Its totient is φ = 60260700.

The previous prime is 120521399. The next prime is 120521407. The reversal of 120521404 is 404125021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120521407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065172 + ... + 15065179.

Almost surely, 2^120521404 is an apocalyptic number.

It is an amenable number.

120521404 is a deficient number, since it is larger than the sum of its proper divisors (90391060).

120521404 is a wasteful number, since it uses less digits than its factorization.

120521404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30130355 (or 30130353 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 120521404 is about 10978.2240822457. The cubic root of 120521404 is about 493.9557675924.

Adding to 120521404 its reverse (404125021), we get a palindrome (524646425).

It can be divided in two parts, 12052 and 1404, that added together give a square (13456 = 116²).

The spelling of 120521404 in words is "one hundred twenty million, five hundred twenty-one thousand, four hundred four".