201478029 has 16 divisors (see below), whose sum is σ = 272921472. Its totient is φ = 132185088.

The previous prime is 201478027. The next prime is 201478031. The reversal of 201478029 is 920874102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201478027) and next prime (201478031).

It is not a de Polignac number, because 201478029 - 2¹ = 201478027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201478027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146704 + ... + 148070.

It is an arithmetic number, because the mean of its divisors is an integer number (17057592).

Almost surely, 2^201478029 is an apocalyptic number.

It is an amenable number.

201478029 is a deficient number, since it is larger than the sum of its proper divisors (71443443).

201478029 is a wasteful number, since it uses less digits than its factorization.

201478029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 201478029 is about 14194.2956500138. The cubic root of 201478029 is about 586.2406077452.

The spelling of 201478029 in words is "two hundred one million, four hundred seventy-eight thousand, twenty-nine".