1214436631 has 4 divisors (see below), whose sum is σ = 1214507952. Its totient is φ = 1214365312.

The previous prime is 1214436581. The next prime is 1214436649. The reversal of 1214436631 is 1366344121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1366344121 = 10211 ⋅133811.

It is a cyclic number.

It is not a de Polignac number, because 1214436631 - 2¹⁵ = 1214403863 is a prime.

It is a super-2 number, since 2×1214436631² = 2949712661429260322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214436593 and 1214436602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214436331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6486 + ... + 49708.

It is an arithmetic number, because the mean of its divisors is an integer number (303626988).

Almost surely, 2^1214436631 is an apocalyptic number.

1214436631 is a deficient number, since it is larger than the sum of its proper divisors (71321).

1214436631 is an equidigital number, since it uses as much as digits as its factorization.

1214436631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71320.

The product of its digits is 10368, while the sum is 31.

The square root of 1214436631 is about 34848.7679983095. The cubic root of 1214436631 is about 1066.9030404650.

The spelling of 1214436631 in words is "one billion, two hundred fourteen million, four hundred thirty-six thousand, six hundred thirty-one".