201690357 has 16 divisors (see below), whose sum is σ = 300525120. Its totient is φ = 119254400.

The previous prime is 201690347. The next prime is 201690361. The reversal of 201690357 is 753096102.

It is a cyclic number.

It is not a de Polignac number, because 201690357 - 2⁴ = 201690341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201690317) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 73182 + ... + 75887.

It is an arithmetic number, because the mean of its divisors is an integer number (18782820).

Almost surely, 2^201690357 is an apocalyptic number.

It is an amenable number.

201690357 is a deficient number, since it is larger than the sum of its proper divisors (98834763).

201690357 is a wasteful number, since it uses less digits than its factorization.

201690357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149124.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 201690357 is about 14201.7730231123. The cubic root of 201690357 is about 586.4464723677.

The spelling of 201690357 in words is "two hundred one million, six hundred ninety thousand, three hundred fifty-seven".