1213046434 has 16 divisors (see below), whose sum is σ = 1837737720. Its totient is φ = 600497280.

The previous prime is 1213046413. The next prime is 1213046437. The reversal of 1213046434 is 4346403121.

It can be written as a sum of positive squares in 4 ways, for example, as 545082409 + 667964025 = 23347^2 + 25845^2 .

It is not an unprimeable number, because it can be changed into a prime (1213046437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75582 + ... + 90214.

Almost surely, 2^1213046434 is an apocalyptic number.

1213046434 is a deficient number, since it is larger than the sum of its proper divisors (624691286).

1213046434 is a wasteful number, since it uses less digits than its factorization.

1213046434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15045.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1213046434 is about 34828.8161441069. The cubic root of 1213046434 is about 1066.4957811968.

Adding to 1213046434 its reverse (4346403121), we get a palindrome (5559449555).

It can be divided in two parts, 12130 and 46434, that added together give a square (58564 = 242²).

The spelling of 1213046434 in words is "one billion, two hundred thirteen million, forty-six thousand, four hundred thirty-four".