1018564136 has 8 divisors (see below), whose sum is σ = 1909807770. Its totient is φ = 509282064.

The previous prime is 1018564121. The next prime is 1018564147. The reversal of 1018564136 is 6314658101.

It can be written as a sum of positive squares in only one way, i.e., 998939236 + 19624900 = 31606^2 + 4430^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1018564096 and 1018564105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63660251 + ... + 63660266.

Almost surely, 2^1018564136 is an apocalyptic number.

It is an amenable number.

1018564136 is a deficient number, since it is larger than the sum of its proper divisors (891243634).

1018564136 is a wasteful number, since it uses less digits than its factorization.

1018564136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127320523 (or 127320519 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1018564136 is about 31914.9516057913. The cubic root of 1018564136 is about 1006.1501435264.

The spelling of 1018564136 in words is "one billion, eighteen million, five hundred sixty-four thousand, one hundred thirty-six".