1212091494 has 8 divisors (see below), whose sum is σ = 2424183000. Its totient is φ = 404030496.

The previous prime is 1212091493. The next prime is 1212091501. The reversal of 1212091494 is 4941902121.

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

1212091494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212091493) 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, 101007619 + ... + 101007630.

It is an arithmetic number, because the mean of its divisors is an integer number (303022875).

Almost surely, 2^1212091494 is an apocalyptic number.

1212091494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212091494 is a wasteful number, since it uses less digits than its factorization.

1212091494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202015254.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1212091494 is about 34815.1043945010. The cubic root of 1212091494 is about 1066.2158504877.

The spelling of 1212091494 in words is "one billion, two hundred twelve million, ninety-one thousand, four hundred ninety-four".