193490136 has 48 divisors (see below), whose sum is σ = 598899600. Its totient is φ = 55282752.

The previous prime is 193490113. The next prime is 193490149. The reversal of 193490136 is 631094391.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 193490136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191451 + ... + 192458.

It is an arithmetic number, because the mean of its divisors is an integer number (12477075).

Almost surely, 2^193490136 is an apocalyptic number.

It is an amenable number.

193490136 is an abundant number, since it is smaller than the sum of its proper divisors (405409464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193490136 is a wasteful number, since it uses less digits than its factorization.

193490136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383928 (or 383921 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 193490136 is about 13910.0731845666. The cubic root of 193490136 is about 578.3884475118.

The spelling of 193490136 in words is "one hundred ninety-three million, four hundred ninety thousand, one hundred thirty-six".