201949151 has 2 divisors, whose sum is σ = 201949152. Its totient is φ = 201949150.

The previous prime is 201949147. The next prime is 201949183. The reversal of 201949151 is 151949102.

It is an a-pointer prime, because the next prime (201949183) can be obtained adding 201949151 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201949151 - 2² = 201949147 is a prime.

It is equal to p_11180984 and since 201949151 and 11180984 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201949141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100974575 + 100974576.

It is an arithmetic number, because the mean of its divisors is an integer number (100974576).

Almost surely, 2^201949151 is an apocalyptic number.

201949151 is a deficient number, since it is larger than the sum of its proper divisors (1).

201949151 is an equidigital number, since it uses as much as digits as its factorization.

201949151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 201949151 is about 14210.8814293836. The cubic root of 201949151 is about 586.6971932649.

The spelling of 201949151 in words is "two hundred one million, nine hundred forty-nine thousand, one hundred fifty-one".