452121512 has 8 divisors (see below), whose sum is σ = 847727850. Its totient is φ = 226060752.

The previous prime is 452121499. The next prime is 452121517. The reversal of 452121512 is 215121254.

It can be written as a sum of positive squares in only one way, i.e., 402644356 + 49477156 = 20066^2 + 7034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×452121512² = 408827723226332288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (452121517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28257587 + ... + 28257602.

Almost surely, 2^452121512 is an apocalyptic number.

It is an amenable number.

452121512 is a deficient number, since it is larger than the sum of its proper divisors (395606338).

452121512 is a wasteful number, since it uses less digits than its factorization.

452121512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56515195 (or 56515191 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 452121512 is about 21263.1491552874. The cubic root of 452121512 is about 767.5117927644.

Adding to 452121512 its reverse (215121254), we get a palindrome (667242766).

The spelling of 452121512 in words is "four hundred fifty-two million, one hundred twenty-one thousand, five hundred twelve".