1214182538 has 4 divisors (see below), whose sum is σ = 1821273810. Its totient is φ = 607091268.

The previous prime is 1214182531. The next prime is 1214182547. The reversal of 1214182538 is 8352814121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8352814121 = 37 ⋅225751733.

It can be written as a sum of positive squares in only one way, i.e., 737502649 + 476679889 = 27157^2 + 21833^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1214182498 and 1214182507.

It is not an unprimeable number, because it can be changed into a prime (1214182531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303545633 + ... + 303545636.

Almost surely, 2^1214182538 is an apocalyptic number.

1214182538 is a deficient number, since it is larger than the sum of its proper divisors (607091272).

1214182538 is an equidigital number, since it uses as much as digits as its factorization.

1214182538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607091271.

The product of its digits is 15360, while the sum is 35.

The square root of 1214182538 is about 34845.1221550449. The cubic root of 1214182538 is about 1066.8286269479.

Adding to 1214182538 its reverse (8352814121), we get a palindrome (9566996659).

The spelling of 1214182538 in words is "one billion, two hundred fourteen million, one hundred eighty-two thousand, five hundred thirty-eight".