1212488967 has 4 divisors (see below), whose sum is σ = 1616651960. Its totient is φ = 808325976.

The previous prime is 1212488951. The next prime is 1212488969. The reversal of 1212488967 is 7698842121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7698842121 = 3 ⋅2566280707.

It is not a de Polignac number, because 1212488967 - 2⁴ = 1212488951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212488969) 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, 202081492 + ... + 202081497.

It is an arithmetic number, because the mean of its divisors is an integer number (404162990).

Almost surely, 2^1212488967 is an apocalyptic number.

1212488967 is a deficient number, since it is larger than the sum of its proper divisors (404162993).

1212488967 is an equidigital number, since it uses as much as digits as its factorization.

1212488967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404162992.

The product of its digits is 387072, while the sum is 48.

The square root of 1212488967 is about 34820.8122679526. The cubic root of 1212488967 is about 1066.3323834116.

The spelling of 1212488967 in words is "one billion, two hundred twelve million, four hundred eighty-eight thousand, nine hundred sixty-seven".