1230400515 has 16 divisors (see below), whose sum is σ = 1975603968. Its totient is φ = 653892576.

The previous prime is 1230400513. The next prime is 1230400519. The reversal of 1230400515 is 5150040321.

It is not a de Polignac number, because 1230400515 - 2¹ = 1230400513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230400491 and 1230400500.

It is not an unprimeable number, because it can be changed into a prime (1230400513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140679 + ... + 149168.

It is an arithmetic number, because the mean of its divisors is an integer number (123475248).

Almost surely, 2^1230400515 is an apocalyptic number.

1230400515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230400515 is a deficient number, since it is larger than the sum of its proper divisors (745203453).

1230400515 is a wasteful number, since it uses less digits than its factorization.

1230400515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290138.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1230400515 is about 35077.0653704098. The cubic root of 1230400515 is about 1071.5575520026.

Adding to 1230400515 its reverse (5150040321), we get a palindrome (6380440836).

The spelling of 1230400515 in words is "one billion, two hundred thirty million, four hundred thousand, five hundred fifteen".