201472857 has 6 divisors (see below), whose sum is σ = 291016362. Its totient is φ = 134315232.

The previous prime is 201472853. The next prime is 201472861. The reversal of 201472857 is 758274102.

It is an interprime number because it is at equal distance from previous prime (201472853) and next prime (201472861).

It can be written as a sum of positive squares in only one way, i.e., 194769936 + 6702921 = 13956^2 + 2589^2 .

It is not a de Polignac number, because 201472857 - 2² = 201472853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201472853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11192928 + ... + 11192945.

It is an arithmetic number, because the mean of its divisors is an integer number (48502727).

Almost surely, 2^201472857 is an apocalyptic number.

It is an amenable number.

201472857 is a deficient number, since it is larger than the sum of its proper divisors (89543505).

201472857 is a wasteful number, since it uses less digits than its factorization.

201472857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22385879 (or 22385876 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 201472857 is about 14194.1134629818. The cubic root of 201472857 is about 586.2355913796.

The spelling of 201472857 in words is "two hundred one million, four hundred seventy-two thousand, eight hundred fifty-seven".