1230345155 has 48 divisors (see below), whose sum is σ = 1675162944. Its totient is φ = 862149120.

The previous prime is 1230345119. The next prime is 1230345157. The reversal of 1230345155 is 5515430321.

It is not a de Polignac number, because 1230345155 - 2⁶ = 1230345091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1230345157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3881057 + ... + 3881373.

It is an arithmetic number, because the mean of its divisors is an integer number (34899228).

Almost surely, 2^1230345155 is an apocalyptic number.

1230345155 is a deficient number, since it is larger than the sum of its proper divisors (444817789).

1230345155 is a wasteful number, since it uses less digits than its factorization.

1230345155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1230345155 is about 35076.2762419274. The cubic root of 1230345155 is about 1071.5414807274.

Adding to 1230345155 its reverse (5515430321), we get a palindrome (6745775476).

The spelling of 1230345155 in words is "one billion, two hundred thirty million, three hundred forty-five thousand, one hundred fifty-five".