193485021 has 16 divisors (see below), whose sum is σ = 261506880. Its totient is φ = 127233920.

The previous prime is 193484989. The next prime is 193485023. The reversal of 193485021 is 120584391.

193485021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 193485021 - 2⁵ = 193484989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193485023) 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, 181831 + ... + 182891.

It is an arithmetic number, because the mean of its divisors is an integer number (16344180).

Almost surely, 2^193485021 is an apocalyptic number.

It is an amenable number.

193485021 is a deficient number, since it is larger than the sum of its proper divisors (68021859).

193485021 is a wasteful number, since it uses less digits than its factorization.

193485021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 193485021 is about 13909.8893237869. The cubic root of 193485021 is about 578.3833508127.

The spelling of 193485021 in words is "one hundred ninety-three million, four hundred eighty-five thousand, twenty-one".