1151423550 has 36 divisors (see below), whose sum is σ = 3093492480. Its totient is φ = 307046160.

The previous prime is 1151423501. The next prime is 1151423563. The reversal of 1151423550 is 553241511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1278910 + ... + 1279809.

Almost surely, 2^1151423550 is an apocalyptic number.

1151423550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151423550 is an abundant number, since it is smaller than the sum of its proper divisors (1942068930).

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

1151423550 is a wasteful number, since it uses less digits than its factorization.

1151423550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558737 (or 2558729 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1151423550 is about 33932.6325238700. The cubic root of 1151423550 is about 1048.1216759207.

The spelling of 1151423550 in words is "one billion, one hundred fifty-one million, four hundred twenty-three thousand, five hundred fifty".