1133151550 has 48 divisors (see below), whose sum is σ = 2132778672. Its totient is φ = 447897600.

The previous prime is 1133151521. The next prime is 1133151559. The reversal of 1133151550 is 551513311.

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 not an unprimeable number, because it can be changed into a prime (1133151559) 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, 2094280 + ... + 2094820.

It is an arithmetic number, because the mean of its divisors is an integer number (44432889).

Almost surely, 2^1133151550 is an apocalyptic number.

1133151550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1133151550 is a deficient number, since it is larger than the sum of its proper divisors (999627122).

1133151550 is a wasteful number, since it uses less digits than its factorization.

1133151550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1133151550 is about 33662.3164681220. The cubic root of 1133151550 is about 1042.5478549611.

Adding to 1133151550 its reverse (551513311), we get a palindrome (1684664861).

The spelling of 1133151550 in words is "one billion, one hundred thirty-three million, one hundred fifty-one thousand, five hundred fifty".