1212634407 has 16 divisors (see below), whose sum is σ = 1642579712. Its totient is φ = 795579840.

The previous prime is 1212634393. The next prime is 1212634421. The reversal of 1212634407 is 7044362121.

It is an interprime number because it is at equal distance from previous prime (1212634393) and next prime (1212634421).

It is not a de Polignac number, because 1212634407 - 2¹⁶ = 1212568871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212634457) 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, 263238 + ... + 267804.

It is an arithmetic number, because the mean of its divisors is an integer number (102661232).

Almost surely, 2^1212634407 is an apocalyptic number.

1212634407 is a deficient number, since it is larger than the sum of its proper divisors (429945305).

1212634407 is a wasteful number, since it uses less digits than its factorization.

1212634407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 1212634407 is about 34822.9006115229. The cubic root of 1212634407 is about 1066.3750178013.

Adding to 1212634407 its reverse (7044362121), we get a palindrome (8256996528).

The spelling of 1212634407 in words is "one billion, two hundred twelve million, six hundred thirty-four thousand, four hundred seven".