1267232051 has 4 divisors (see below), whose sum is σ = 1267316592. Its totient is φ = 1267147512.

The previous prime is 1267232047. The next prime is 1267232077. The reversal of 1267232051 is 1502327621.

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: 1502327621 = 17 ⋅88372213.

It is a cyclic number.

It is not a de Polignac number, because 1267232051 - 2² = 1267232047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1267232041) 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, 13055 + ... + 52008.

It is an arithmetic number, because the mean of its divisors is an integer number (316829148).

Almost surely, 2^1267232051 is an apocalyptic number.

1267232051 is a deficient number, since it is larger than the sum of its proper divisors (84541).

1267232051 is an equidigital number, since it uses as much as digits as its factorization.

1267232051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84540.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1267232051 is about 35598.2029181250. The cubic root of 1267232051 is about 1082.1448149248.

Adding to 1267232051 its reverse (1502327621), we get a palindrome (2769559672).

The spelling of 1267232051 in words is "one billion, two hundred sixty-seven million, two hundred thirty-two thousand, fifty-one".