1275505036 has 48 divisors (see below), whose sum is σ = 2679233760. Its totient is φ = 524897280.

The previous prime is 1275505031. The next prime is 1275505037. The reversal of 1275505036 is 6305055721.

It is a super-2 number, since 2×1275505036² = 3253826193722722592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 1275504992 and 1275505010.

It is not an unprimeable number, because it can be changed into a prime (1275505031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21175 + ... + 54766.

It is an arithmetic number, because the mean of its divisors is an integer number (55817370).

Almost surely, 2^1275505036 is an apocalyptic number.

It is an amenable number.

1275505036 is an abundant number, since it is smaller than the sum of its proper divisors (1403728724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1275505036 is a wasteful number, since it uses less digits than its factorization.

1275505036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75994 (or 75992 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 1275505036 is about 35714.2133610696. The cubic root of 1275505036 is about 1084.4945966705.

The spelling of 1275505036 in words is "one billion, two hundred seventy-five million, five hundred five thousand, thirty-six".