201055431 has 8 divisors (see below), whose sum is σ = 274612464. Its totient is φ = 130767680.

The previous prime is 201055427. The next prime is 201055501. The reversal of 201055431 is 134550102.

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 201055431 - 2² = 201055427 is a prime.

It is a super-2 number, since 2×201055431² = 80846572669191522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201055398 and 201055407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201055411) 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, 817176 + ... + 817421.

It is an arithmetic number, because the mean of its divisors is an integer number (34326558).

Almost surely, 2^201055431 is an apocalyptic number.

201055431 is a deficient number, since it is larger than the sum of its proper divisors (73557033).

201055431 is a wasteful number, since it uses less digits than its factorization.

201055431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634641.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 201055431 is about 14179.4016446393. The cubic root of 201055431 is about 585.8304430484.

The spelling of 201055431 in words is "two hundred one million, fifty-five thousand, four hundred thirty-one".