1213625414 has 4 divisors (see below), whose sum is σ = 1820438124. Its totient is φ = 606812706.

The previous prime is 1213625401. The next prime is 1213625423. The reversal of 1213625414 is 4145263121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4145263121 = 8363 ⋅495667.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 303406352 + ... + 303406355.

It is an arithmetic number, because the mean of its divisors is an integer number (455109531).

Almost surely, 2^1213625414 is an apocalyptic number.

1213625414 is a deficient number, since it is larger than the sum of its proper divisors (606812710).

1213625414 is an equidigital number, since it uses as much as digits as its factorization.

1213625414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606812709.

The product of its digits is 5760, while the sum is 29.

The square root of 1213625414 is about 34837.1269481282. The cubic root of 1213625414 is about 1066.6654316175.

Adding to 1213625414 its reverse (4145263121), we get a palindrome (5358888535).

The spelling of 1213625414 in words is "one billion, two hundred thirteen million, six hundred twenty-five thousand, four hundred fourteen".