1230752545 has 16 divisors (see below), whose sum is σ = 1663142400. Its totient is φ = 866217600.

The previous prime is 1230752543. The next prime is 1230752599. The reversal of 1230752545 is 5452570321.

It is not a de Polignac number, because 1230752545 - 2¹ = 1230752543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230752545.

It is not an unprimeable number, because it can be changed into a prime (1230752543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359220 + ... + 362629.

It is an arithmetic number, because the mean of its divisors is an integer number (103946400).

Almost surely, 2^1230752545 is an apocalyptic number.

It is an amenable number.

1230752545 is a deficient number, since it is larger than the sum of its proper divisors (432389855).

1230752545 is a wasteful number, since it uses less digits than its factorization.

1230752545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721896.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 1230752545 is about 35082.0829626748. The cubic root of 1230752545 is about 1071.6597367331.

The spelling of 1230752545 in words is "one billion, two hundred thirty million, seven hundred fifty-two thousand, five hundred forty-five".