201381145 has 8 divisors (see below), whose sum is σ = 276179904. Its totient is φ = 138089904.

The previous prime is 201381139. The next prime is 201381149. The reversal of 201381145 is 541183102.

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 201381145 - 2³ = 201381137 is a prime.

It is a super-2 number, since 2×201381145² = 81108731123022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201381149) 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, 2876839 + ... + 2876908.

It is an arithmetic number, because the mean of its divisors is an integer number (34522488).

Almost surely, 2^201381145 is an apocalyptic number.

It is an amenable number.

201381145 is a deficient number, since it is larger than the sum of its proper divisors (74798759).

201381145 is an equidigital number, since it uses as much as digits as its factorization.

201381145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5753759.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 201381145 is about 14190.8824602278. The cubic root of 201381145 is about 586.1466248897.

The spelling of 201381145 in words is "two hundred one million, three hundred eighty-one thousand, one hundred forty-five".