1135261250 has 30 divisors (see below), whose sum is σ = 2130168909. Its totient is φ = 453628000.

The previous prime is 1135261249. The next prime is 1135261273. The reversal of 1135261250 is 521625311.

It can be written as a sum of positive squares in 8 ways, for example, as 146724769 + 988536481 = 12113^2 + 31441^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23825.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1190774 + ... + 1191726.

Almost surely, 2^1135261250 is an apocalyptic number.

1135261250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1135261250 is a deficient number, since it is larger than the sum of its proper divisors (994907659).

1135261250 is an frugal number, since it uses more digits than its factorization.

1135261250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1135261250 is about 33693.6381235390. The cubic root of 1135261250 is about 1043.1944585668.

Multiplying 1135261250 by its product of nonzero digits (1800), we get a square (2043470250000 = 1429500²).

Adding to 1135261250 its reverse (521625311), we get a palindrome (1656886561).

The spelling of 1135261250 in words is "one billion, one hundred thirty-five million, two hundred sixty-one thousand, two hundred fifty".