1230046521 has 16 divisors (see below), whose sum is σ = 1790431680. Its totient is φ = 744952320.

The previous prime is 1230046457. The next prime is 1230046547. The reversal of 1230046521 is 1256400321.

It is not a de Polignac number, because 1230046521 - 2⁶ = 1230046457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230046491 and 1230046500.

It is not an unprimeable number, because it can be changed into a prime (1230046591) 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, 36621 + ... + 61653.

It is an arithmetic number, because the mean of its divisors is an integer number (111901980).

Almost surely, 2^1230046521 is an apocalyptic number.

1230046521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1230046521 is a deficient number, since it is larger than the sum of its proper divisors (560385159).

1230046521 is a wasteful number, since it uses less digits than its factorization.

1230046521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26536.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1230046521 is about 35072.0190607841. The cubic root of 1230046521 is about 1071.4547775203.

Adding to 1230046521 its reverse (1256400321), we get a palindrome (2486446842).

The spelling of 1230046521 in words is "one billion, two hundred thirty million, forty-six thousand, five hundred twenty-one".