1274140121 has 4 divisors (see below), whose sum is σ = 1274400000. Its totient is φ = 1273880244.

The previous prime is 1274140117. The next prime is 1274140243. The reversal of 1274140121 is 1210414721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1210414721 = 23 ⋅52626727.

It is a cyclic number.

It is not a de Polignac number, because 1274140121 - 2² = 1274140117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1274140111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122441 + ... + 132438.

It is an arithmetic number, because the mean of its divisors is an integer number (318600000).

Almost surely, 2^1274140121 is an apocalyptic number.

It is an amenable number.

1274140121 is a deficient number, since it is larger than the sum of its proper divisors (259879).

1274140121 is an equidigital number, since it uses as much as digits as its factorization.

1274140121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259878.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1274140121 is about 35695.0993975364. The cubic root of 1274140121 is about 1084.1076202138.

Adding to 1274140121 its reverse (1210414721), we get a palindrome (2484554842).

The spelling of 1274140121 in words is "one billion, two hundred seventy-four million, one hundred forty thousand, one hundred twenty-one".