205062542 has 8 divisors (see below), whose sum is σ = 308041032. Its totient is φ = 102382200.

The previous prime is 205062527. The next prime is 205062581. The reversal of 205062542 is 245260502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×205062542² = 84101292263003528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72809 + ... + 75572.

It is an arithmetic number, because the mean of its divisors is an integer number (38505129).

Almost surely, 2^205062542 is an apocalyptic number.

205062542 is a deficient number, since it is larger than the sum of its proper divisors (102978490).

205062542 is a wasteful number, since it uses less digits than its factorization.

205062542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149074.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 205062542 is about 14320.0049580997. The cubic root of 205062542 is about 589.6968106126.

It can be divided in two parts, 2050625 and 42, that multiplied together give a triangular number (86126250 = T₁₃₁₂₄).

The spelling of 205062542 in words is "two hundred five million, sixty-two thousand, five hundred forty-two".