201181029 has 16 divisors (see below), whose sum is σ = 310008960. Its totient is φ = 113667840.

The previous prime is 201181027. The next prime is 201181031. The reversal of 201181029 is 920181102.

It is an interprime number because it is at equal distance from previous prime (201181027) and next prime (201181031).

It is not a de Polignac number, because 201181029 - 2¹ = 201181027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201181027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51952 + ... + 55689.

It is an arithmetic number, because the mean of its divisors is an integer number (19375560).

Almost surely, 2^201181029 is an apocalyptic number.

It is an amenable number.

201181029 is a deficient number, since it is larger than the sum of its proper divisors (108827931).

201181029 is a wasteful number, since it uses less digits than its factorization.

201181029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107740.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 201181029 is about 14183.8298424650. The cubic root of 201181029 is about 585.9524057918.

The spelling of 201181029 in words is "two hundred one million, one hundred eighty-one thousand, twenty-nine".