1235133550 has 48 divisors (see below), whose sum is σ = 2632858272. Its totient is φ = 422294400.

The previous prime is 1235133517. The next prime is 1235133583. The reversal of 1235133550 is 553315321.

It is an interprime number because it is at equal distance from previous prime (1235133517) and next prime (1235133583).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125820 + ... + 135280.

It is an arithmetic number, because the mean of its divisors is an integer number (54851214).

Almost surely, 2^1235133550 is an apocalyptic number.

1235133550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1235133550 is an abundant number, since it is smaller than the sum of its proper divisors (1397724722).

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

1235133550 is a wasteful number, since it uses less digits than its factorization.

1235133550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853 (or 9848 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 1235133550 is about 35144.4668475708. The cubic root of 1235133550 is about 1072.9297962428.

Adding to 1235133550 its reverse (553315321), we get a palindrome (1788448871).

The spelling of 1235133550 in words is "one billion, two hundred thirty-five million, one hundred thirty-three thousand, five hundred fifty".