201690743 has 8 divisors (see below), whose sum is σ = 209448960. Its totient is φ = 194010840.

The previous prime is 201690739. The next prime is 201690763. The reversal of 201690743 is 347096102.

201690743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201690743 - 2² = 201690739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201690763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14303 + ... + 24656.

It is an arithmetic number, because the mean of its divisors is an integer number (26181120).

Almost surely, 2^201690743 is an apocalyptic number.

201690743 is a deficient number, since it is larger than the sum of its proper divisors (7758217).

201690743 is a wasteful number, since it uses less digits than its factorization.

201690743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39157.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 201690743 is about 14201.7866129582. The cubic root of 201690743 is about 586.4468464861.

The spelling of 201690743 in words is "two hundred one million, six hundred ninety thousand, seven hundred forty-three".