1271420234 has 16 divisors (see below), whose sum is σ = 2180108736. Its totient is φ = 544761600.

The previous prime is 1271420231. The next prime is 1271420237. The reversal of 1271420234 is 4320241721.

It is an interprime number because it is at equal distance from previous prime (1271420231) and next prime (1271420237).

It is a super-2 number, since 2×1271420234² = 3233018822849229512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1271420231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67829 + ... + 84519.

It is an arithmetic number, because the mean of its divisors is an integer number (136256796).

Almost surely, 2^1271420234 is an apocalyptic number.

1271420234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1271420234 is a deficient number, since it is larger than the sum of its proper divisors (908688502).

1271420234 is a wasteful number, since it uses less digits than its factorization.

1271420234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22141.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1271420234 is about 35656.9801581682. The cubic root of 1271420234 is about 1083.3356614598.

Adding to 1271420234 its reverse (4320241721), we get a palindrome (5591661955).

The spelling of 1271420234 in words is "one billion, two hundred seventy-one million, four hundred twenty thousand, two hundred thirty-four".