1151043550 has 24 divisors (see below), whose sum is σ = 2141840592. Its totient is φ = 460224000.

The previous prime is 1151043473. The next prime is 1151043589. The reversal of 1151043550 is 553401511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208830 + ... + 214270.

It is an arithmetic number, because the mean of its divisors is an integer number (89243358).

Almost surely, 2^1151043550 is an apocalyptic number.

1151043550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151043550 is a deficient number, since it is larger than the sum of its proper divisors (990797042).

1151043550 is a wasteful number, since it uses less digits than its factorization.

1151043550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9684 (or 9679 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1151043550 is about 33927.0327320265. The cubic root of 1151043550 is about 1048.0063606776.

The spelling of 1151043550 in words is "one billion, one hundred fifty-one million, forty-three thousand, five hundred fifty".