1212462263 has 4 divisors (see below), whose sum is σ = 1223585880. Its totient is φ = 1201338648.

The previous prime is 1212462241. The next prime is 1212462281. The reversal of 1212462263 is 3622642121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3622642121 = 7 ⋅517520303.

It is a cyclic number.

It is not a de Polignac number, because 1212462263 - 2²² = 1208267959 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 (1212462203) 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, 5561645 + ... + 5561862.

It is an arithmetic number, because the mean of its divisors is an integer number (305896470).

Almost surely, 2^1212462263 is an apocalyptic number.

1212462263 is a deficient number, since it is larger than the sum of its proper divisors (11123617).

1212462263 is a wasteful number, since it uses less digits than its factorization.

1212462263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123616.

The product of its digits is 6912, while the sum is 29.

The square root of 1212462263 is about 34820.4288170034. The cubic root of 1212462263 is about 1066.3245550108.

The spelling of 1212462263 in words is "one billion, two hundred twelve million, four hundred sixty-two thousand, two hundred sixty-three".