205454104 has 8 divisors (see below), whose sum is σ = 385226460. Its totient is φ = 102727048.

The previous prime is 205454089. The next prime is 205454131. The reversal of 205454104 is 401454502.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×205454104² = 84422777700885632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12840874 + ... + 12840889.

Almost surely, 2^205454104 is an apocalyptic number.

It is an amenable number.

205454104 is a deficient number, since it is larger than the sum of its proper divisors (179772356).

205454104 is a wasteful number, since it uses less digits than its factorization.

205454104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25681769 (or 25681765 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 205454104 is about 14333.6702906129. The cubic root of 205454104 is about 590.0719092666.

It can be divided in two parts, 20545 and 4104, that added together give a square (24649 = 157²).

The spelling of 205454104 in words is "two hundred five million, four hundred fifty-four thousand, one hundred four".