1230861567 has 16 divisors (see below), whose sum is σ = 1780299360. Its totient is φ = 751921152.

The previous prime is 1230861503. The next prime is 1230861571. The reversal of 1230861567 is 7651680321.

It is not a de Polignac number, because 1230861567 - 2⁶ = 1230861503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230861067) 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, 109842 + ... + 120527.

It is an arithmetic number, because the mean of its divisors is an integer number (111268710).

Almost surely, 2^1230861567 is an apocalyptic number.

1230861567 is a deficient number, since it is larger than the sum of its proper divisors (549437793).

1230861567 is a wasteful number, since it uses less digits than its factorization.

1230861567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230522.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1230861567 is about 35083.6367413642. The cubic root of 1230861567 is about 1071.6913789016.

The spelling of 1230861567 in words is "one billion, two hundred thirty million, eight hundred sixty-one thousand, five hundred sixty-seven".