201352578 has 32 divisors (see below), whose sum is σ = 462566400. Its totient is φ = 57237840.

The previous prime is 201352577. The next prime is 201352579. The reversal of 201352578 is 875253102.

It is an interprime number because it is at equal distance from previous prime (201352577) and next prime (201352579).

It is not an unprimeable number, because it can be changed into a prime (201352577) 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, 3688 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (14455200).

Almost surely, 2^201352578 is an apocalyptic number.

201352578 is an abundant number, since it is smaller than the sum of its proper divisors (261213822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201352578 is a wasteful number, since it uses less digits than its factorization.

201352578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24302.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 201352578 is about 14189.8758979774. The cubic root of 201352578 is about 586.1189075605.

It can be divided in two parts, 201352 and 578, that added together give a triangular number (201930 = T₆₃₅).

The spelling of 201352578 in words is "two hundred one million, three hundred fifty-two thousand, five hundred seventy-eight".