201374261 has 4 divisors (see below), whose sum is σ = 219681024. Its totient is φ = 183067500.

The previous prime is 201374227. The next prime is 201374279. The reversal of 201374261 is 162473102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-201374261 is a prime.

It is a super-2 number, since 2×201374261² = 81103185986592242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201374261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201374281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9153365 + ... + 9153386.

It is an arithmetic number, because the mean of its divisors is an integer number (54920256).

Almost surely, 2^201374261 is an apocalyptic number.

It is an amenable number.

201374261 is a deficient number, since it is larger than the sum of its proper divisors (18306763).

201374261 is a wasteful number, since it uses less digits than its factorization.

201374261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18306762.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 201374261 is about 14190.6399080521. The cubic root of 201374261 is about 586.1399458808.

The spelling of 201374261 in words is "two hundred one million, three hundred seventy-four thousand, two hundred sixty-one".