1505680136 has 8 divisors (see below), whose sum is σ = 2823150270. Its totient is φ = 752840064.

The previous prime is 1505680133. The next prime is 1505680151. The reversal of 1505680136 is 6310865051.

It can be written as a sum of positive squares in only one way, i.e., 1368556036 + 137124100 = 36994^2 + 11710^2 .

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 = 1505680096 and 1505680105.

It is not an unprimeable number, because it can be changed into a prime (1505680133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94105001 + ... + 94105016.

Almost surely, 2^1505680136 is an apocalyptic number.

It is an amenable number.

1505680136 is a deficient number, since it is larger than the sum of its proper divisors (1317470134).

1505680136 is a wasteful number, since it uses less digits than its factorization.

1505680136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188210023 (or 188210019 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1505680136 is about 38803.0944126883. The cubic root of 1505680136 is about 1146.1573408797.

The spelling of 1505680136 in words is "one billion, five hundred five million, six hundred eighty thousand, one hundred thirty-six".