201257830 has 16 divisors (see below), whose sum is σ = 363308400. Its totient is φ = 80271072.

The previous prime is 201257821. The next prime is 201257839. The reversal of 201257830 is 38752102.

201257830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201257821) and next prime (201257839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201257839) 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, 25344 + ... + 32323.

It is an arithmetic number, because the mean of its divisors is an integer number (22706775).

Almost surely, 2^201257830 is an apocalyptic number.

201257830 is a deficient number, since it is larger than the sum of its proper divisors (162050570).

201257830 is a wasteful number, since it uses less digits than its factorization.

201257830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58023.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 201257830 is about 14186.5369276649. The cubic root of 201257830 is about 586.0269588874.

The spelling of 201257830 in words is "two hundred one million, two hundred fifty-seven thousand, eight hundred thirty".