1212403064 has 16 divisors (see below), whose sum is σ = 2278987800. Its totient is φ = 604672992.

The previous prime is 1212403061. The next prime is 1212403067. The reversal of 1212403064 is 4603042121.

It is an interprime number because it is at equal distance from previous prime (1212403061) and next prime (1212403067).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212403061) 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, 187694 + ... + 194045.

Almost surely, 2^1212403064 is an apocalyptic number.

It is an amenable number.

1212403064 is a deficient number, since it is larger than the sum of its proper divisors (1066584736).

1212403064 is a wasteful number, since it uses less digits than its factorization.

1212403064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382142 (or 382138 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1212403064 is about 34819.5787452979. The cubic root of 1212403064 is about 1066.3072001408.

Adding to 1212403064 its reverse (4603042121), we get a palindrome (5815445185).

The spelling of 1212403064 in words is "one billion, two hundred twelve million, four hundred three thousand, sixty-four".