1230156365 has 8 divisors (see below), whose sum is σ = 1527090840. Its totient is φ = 950189632.

The previous prime is 1230156299. The next prime is 1230156371. The reversal of 1230156365 is 5636510321.

It can be written as a sum of positive squares in 4 ways, for example, as 83521321 + 1146635044 = 9139^2 + 33862^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230156365 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4241774 + ... + 4242063.

It is an arithmetic number, because the mean of its divisors is an integer number (190886355).

Almost surely, 2^1230156365 is an apocalyptic number.

It is an amenable number.

1230156365 is a deficient number, since it is larger than the sum of its proper divisors (296934475).

1230156365 is an equidigital number, since it uses as much as digits as its factorization.

1230156365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8483871.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1230156365 is about 35073.5850035322. The cubic root of 1230156365 is about 1071.4866704537.

Adding to 1230156365 its reverse (5636510321), we get a palindrome (6866666686).

The spelling of 1230156365 in words is "one billion, two hundred thirty million, one hundred fifty-six thousand, three hundred sixty-five".