1275283650 has 48 divisors (see below), whose sum is σ = 3191760000. Its totient is φ = 336951360.

The previous prime is 1275283631. The next prime is 1275283651. The reversal of 1275283650 is 563825721.

It is a junction number, because it is equal to n+sod(n) for n = 1275283599 and 1275283608.

It is not an unprimeable number, because it can be changed into a prime (1275283651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22650 + ... + 55349.

It is an arithmetic number, because the mean of its divisors is an integer number (66495000).

Almost surely, 2^1275283650 is an apocalyptic number.

1275283650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1275283650 is an abundant number, since it is smaller than the sum of its proper divisors (1916476350).

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

1275283650 is a wasteful number, since it uses less digits than its factorization.

1275283650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78123 (or 78118 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1275283650 is about 35711.1138162897. The cubic root of 1275283650 is about 1084.4318487638.

The spelling of 1275283650 in words is "one billion, two hundred seventy-five million, two hundred eighty-three thousand, six hundred fifty".