1255158536 has 16 divisors (see below), whose sum is σ = 2381778000. Its totient is φ = 620017744.

The previous prime is 1255158439. The next prime is 1255158539. The reversal of 1255158536 is 6358515521.

It is a junction number, because it is equal to n+sod(n) for n = 1255158493 and 1255158502.

It is not an unprimeable number, because it can be changed into a prime (1255158539) by changing a digit.

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, 944486 + ... + 945813.

It is an arithmetic number, because the mean of its divisors is an integer number (148861125).

Almost surely, 2^1255158536 is an apocalyptic number.

It is an amenable number.

1255158536 is a deficient number, since it is larger than the sum of its proper divisors (1126619464).

1255158536 is a wasteful number, since it uses less digits than its factorization.

1255158536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890388 (or 1890384 counting only the distinct ones).

The product of its digits is 180000, while the sum is 41.

The square root of 1255158536 is about 35428.2166641224. The cubic root of 1255158536 is about 1078.6971417774.

The spelling of 1255158536 in words is "one billion, two hundred fifty-five million, one hundred fifty-eight thousand, five hundred thirty-six".