1153140550 has 12 divisors (see below), whose sum is σ = 2144841516. Its totient is φ = 461256200.

The previous prime is 1153140509. The next prime is 1153140553. The reversal of 1153140550 is 550413511.

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 (1153140553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11531356 + ... + 11531455.

It is an arithmetic number, because the mean of its divisors is an integer number (178736793).

Almost surely, 2^1153140550 is an apocalyptic number.

1153140550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153140550 is a deficient number, since it is larger than the sum of its proper divisors (991700966).

1153140550 is a wasteful number, since it uses less digits than its factorization.

1153140550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23062823 (or 23062818 counting only the distinct ones).

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

The square root of 1153140550 is about 33957.9232286075. The cubic root of 1153140550 is about 1048.6424026697.

The spelling of 1153140550 in words is "one billion, one hundred fifty-three million, one hundred forty thousand, five hundred fifty".