1154321632 has 24 divisors (see below), whose sum is σ = 2273644296. Its totient is φ = 576888192.

The previous prime is 1154321603. The next prime is 1154321633. The reversal of 1154321632 is 2361234511.

It is a self number, because there is not a number n which added to its sum of digits gives 1154321632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154321633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71983 + ... + 86545.

It is an arithmetic number, because the mean of its divisors is an integer number (94735179).

Almost surely, 2^1154321632 is an apocalyptic number.

It is an amenable number.

1154321632 is a deficient number, since it is larger than the sum of its proper divisors (1119322664).

1154321632 is a wasteful number, since it uses less digits than its factorization.

1154321632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17050 (or 17042 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 1154321632 is about 33975.3091523830. The cubic root of 1154321632 is about 1049.0002977702. Note that the first 3 decimals are identical.

The spelling of 1154321632 in words is "one billion, one hundred fifty-four million, three hundred twenty-one thousand, six hundred thirty-two".