1214442131 has 4 divisors (see below), whose sum is σ = 1387933872. Its totient is φ = 1040950392.

The previous prime is 1214442091. The next prime is 1214442211. The reversal of 1214442131 is 1312444121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312444121 = 47 ⋅27924343.

It is a cyclic number.

It is not a de Polignac number, because 1214442131 - 2¹⁴ = 1214425747 is a prime.

It is a super-2 number, since 2×1214442131² = 2949739379095642322, 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 = 1214442097 and 1214442106.

It is not an unprimeable number, because it can be changed into a prime (1214442631) 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, 86745860 + ... + 86745873.

It is an arithmetic number, because the mean of its divisors is an integer number (346983468).

Almost surely, 2^1214442131 is an apocalyptic number.

1214442131 is a deficient number, since it is larger than the sum of its proper divisors (173491741).

1214442131 is an equidigital number, since it uses as much as digits as its factorization.

1214442131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173491740.

The product of its digits is 768, while the sum is 23.

The square root of 1214442131 is about 34848.8469106225. The cubic root of 1214442131 is about 1066.9046510768.

Adding to 1214442131 its reverse (1312444121), we get a palindrome (2526886252).

The spelling of 1214442131 in words is "one billion, two hundred fourteen million, four hundred forty-two thousand, one hundred thirty-one".