1152320145 has 16 divisors (see below), whose sum is σ = 1844786880. Its totient is φ = 614212544.

The previous prime is 1152320137. The next prime is 1152320219. The reversal of 1152320145 is 5410232511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1152320145 - 2³ = 1152320137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5311 + ... + 48299.

It is an arithmetic number, because the mean of its divisors is an integer number (115299180).

Almost surely, 2^1152320145 is an apocalyptic number.

1152320145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1152320145 is a deficient number, since it is larger than the sum of its proper divisors (692466735).

1152320145 is a wasteful number, since it uses less digits than its factorization.

1152320145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44784.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1152320145 is about 33945.8413505985. The cubic root of 1152320145 is about 1048.3936571678.

Adding to 1152320145 its reverse (5410232511), we get a palindrome (6562552656).

The spelling of 1152320145 in words is "one billion, one hundred fifty-two million, three hundred twenty thousand, one hundred forty-five".