201961379 has 4 divisors (see below), whose sum is σ = 202076184. Its totient is φ = 201846576.

The previous prime is 201961363. The next prime is 201961387. The reversal of 201961379 is 973169102.

It is a happy number.

201961379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201961379 - 2⁴ = 201961363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201961399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54722 + ... + 58295.

It is an arithmetic number, because the mean of its divisors is an integer number (50519046).

Almost surely, 2^201961379 is an apocalyptic number.

201961379 is a deficient number, since it is larger than the sum of its proper divisors (114805).

201961379 is a wasteful number, since it uses less digits than its factorization.

201961379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114804.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 201961379 is about 14211.3116565643. The cubic root of 201961379 is about 586.7090345105.

The spelling of 201961379 in words is "two hundred one million, nine hundred sixty-one thousand, three hundred seventy-nine".