1212449633 has 8 divisors (see below), whose sum is σ = 1249208808. Its totient is φ = 1175900544.

The previous prime is 1212449617. The next prime is 1212449653. The reversal of 1212449633 is 3369442121.

It can be written as a sum of positive squares in 4 ways, for example, as 187361344 + 1025088289 = 13688^2 + 32017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212449633 - 2⁴ = 1212449617 is a prime.

It is a super-2 number, since 2×1212449633² = 2940068225123669378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212449593 and 1212449602.

It is not an unprimeable number, because it can be changed into a prime (1212449653) 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, 40766 + ... + 63927.

It is an arithmetic number, because the mean of its divisors is an integer number (156151101).

Almost surely, 2^1212449633 is an apocalyptic number.

It is an amenable number.

1212449633 is a deficient number, since it is larger than the sum of its proper divisors (36759175).

1212449633 is a wasteful number, since it uses less digits than its factorization.

1212449633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105043.

The product of its digits is 31104, while the sum is 35.

The square root of 1212449633 is about 34820.2474574780. The cubic root of 1212449633 is about 1066.3208524279.

The spelling of 1212449633 in words is "one billion, two hundred twelve million, four hundred forty-nine thousand, six hundred thirty-three".