22603000906 has 4 divisors (see below), whose sum is σ = 33904501362. Its totient is φ = 11301500452.

The previous prime is 22603000873. The next prime is 22603000909. The reversal of 22603000906 is 60900030622.

22603000906 = T₁₂₂₇₅₃ + T₁₂₂₇₅₄ + T₁₂₂₇₅₅.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60900030622 = 2 ⋅30450015311.

It can be written as a sum of positive squares in only one way, i.e., 22452325281 + 150675625 = 149841^2 + 12275^2 .

It is not an unprimeable number, because it can be changed into a prime (22603000909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650750225 + ... + 5650750228.

Almost surely, 2^22603000906 is an apocalyptic number.

22603000906 is the 122755-th centered triangular number.

22603000906 is a deficient number, since it is larger than the sum of its proper divisors (11301500456).

22603000906 is a wasteful number, since it uses less digits than its factorization.

22603000906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11301500455.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 22603000906 in words is "twenty-two billion, six hundred three million, nine hundred six", and thus it is an aban number.