1152020045 has 32 divisors (see below), whose sum is σ = 1599834240. Its totient is φ = 787056640.

The previous prime is 1152019987. The next prime is 1152020053. The reversal of 1152020045 is 5400202511.

It is not a de Polignac number, because 1152020045 - 2¹⁶ = 1151954509 is a prime.

It is a super-4 number, since 4×1152020045⁴ (a number of 37 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1152019999 and 1152020026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 755654 + ... + 757176.

It is an arithmetic number, because the mean of its divisors is an integer number (49994820).

Almost surely, 2^1152020045 is an apocalyptic number.

It is an amenable number.

1152020045 is a deficient number, since it is larger than the sum of its proper divisors (447814195).

1152020045 is a wasteful number, since it uses less digits than its factorization.

1152020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1152020045 is about 33941.4207864079. The cubic root of 1152020045 is about 1048.3026378290.

Adding to 1152020045 its reverse (5400202511), we get a palindrome (6552222556).

The spelling of 1152020045 in words is "one billion, one hundred fifty-two million, twenty thousand, forty-five".