205742514 has 16 divisors (see below), whose sum is σ = 415261440. Its totient is φ = 67951440.

The previous prime is 205742503. The next prime is 205742539. The reversal of 205742514 is 415247502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156642 + ... + 157949.

It is an arithmetic number, because the mean of its divisors is an integer number (25953840).

Almost surely, 2^205742514 is an apocalyptic number.

205742514 is an abundant number, since it is smaller than the sum of its proper divisors (209518926).

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

205742514 is a wasteful number, since it uses less digits than its factorization.

205742514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314705.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 205742514 is about 14343.7273398514. The cubic root of 205742514 is about 590.3478882902.

The spelling of 205742514 in words is "two hundred five million, seven hundred forty-two thousand, five hundred fourteen".