18961033 has 16 divisors (see below), whose sum is σ = 23579136. Its totient is φ = 14846400.

The previous prime is 18961009. The next prime is 18961043. The reversal of 18961033 is 33016981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18961033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18960986 and 18961004.

It is not an unprimeable number, because it can be changed into a prime (18961043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8160 + ... + 10222.

It is an arithmetic number, because the mean of its divisors is an integer number (1473696).

Almost surely, 2^18961033 is an apocalyptic number.

18961033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18961033 is a deficient number, since it is larger than the sum of its proper divisors (4618103).

18961033 is a wasteful number, since it uses less digits than its factorization.

18961033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 18961033 is about 4354.4268279534. The cubic root of 18961033 is about 266.6576196583.

The spelling of 18961033 in words is "eighteen million, nine hundred sixty-one thousand, thirty-three".