450015122 has 4 divisors (see below), whose sum is σ = 675022686. Its totient is φ = 225007560.

The previous prime is 450015121. The next prime is 450015131. The reversal of 450015122 is 221510054.

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

It can be written as a sum of positive squares in only one way, i.e., 283888801 + 166126321 = 16849^2 + 12889^2 .

It is a super-2 number, since 2×450015122² = 405027220057349768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450015094 and 450015103.

It is not an unprimeable number, because it can be changed into a prime (450015121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112503779 + ... + 112503782.

Almost surely, 2^450015122 is an apocalyptic number.

450015122 is a deficient number, since it is larger than the sum of its proper divisors (225007564).

450015122 is a wasteful number, since it uses less digits than its factorization.

450015122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225007563.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 450015122 is about 21213.5598615602. The cubic root of 450015122 is about 766.3180160983.

Adding to 450015122 its reverse (221510054), we get a palindrome (671525176).

The spelling of 450015122 in words is "four hundred fifty million, fifteen thousand, one hundred twenty-two".