1153775450 has 72 divisors (see below), whose sum is σ = 2265138876. Its totient is φ = 437184000.

The previous prime is 1153775429. The next prime is 1153775471. The reversal of 1153775450 is 545773511.

It is an interprime number because it is at equal distance from previous prime (1153775429) and next prime (1153775471).

It can be written as a sum of positive squares in 6 ways, for example, as 205320241 + 948455209 = 14329^2 + 30797^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4787330 + ... + 4787570.

Almost surely, 2^1153775450 is an apocalyptic number.

1153775450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153775450 is a deficient number, since it is larger than the sum of its proper divisors (1111363426).

1153775450 is a wasteful number, since it uses less digits than its factorization.

1153775450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 1153775450 is about 33967.2702759583. The cubic root of 1153775450 is about 1048.8348223793.

The spelling of 1153775450 in words is "one billion, one hundred fifty-three million, seven hundred seventy-five thousand, four hundred fifty".