1230532545 has 32 divisors (see below), whose sum is σ = 2241229824. Its totient is φ = 570680000.

The previous prime is 1230532517. The next prime is 1230532561. The reversal of 1230532545 is 5452350321.

It is not a de Polignac number, because 1230532545 - 2⁶ = 1230532481 is a prime.

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, 158331 + ... + 165920.

It is an arithmetic number, because the mean of its divisors is an integer number (70038432).

Almost surely, 2^1230532545 is an apocalyptic number.

1230532545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1230532545 is a deficient number, since it is larger than the sum of its proper divisors (1010697279).

1230532545 is a wasteful number, since it uses less digits than its factorization.

1230532545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324293.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1230532545 is about 35078.9473188692. The cubic root of 1230532545 is about 1071.5958790031.

Adding to 1230532545 its reverse (5452350321), we get a palindrome (6682882866).

It can be divided in two parts, 12305 and 32545, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 1230532545 in words is "one billion, two hundred thirty million, five hundred thirty-two thousand, five hundred forty-five".