245091612 has 12 divisors (see below), whose sum is σ = 571880456. Its totient is φ = 81697200.

The previous prime is 245091599. The next prime is 245091617. The reversal of 245091612 is 216190542.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 245091612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245091617) 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, 10212139 + ... + 10212162.

Almost surely, 2^245091612 is an apocalyptic number.

It is an amenable number.

245091612 is an abundant number, since it is smaller than the sum of its proper divisors (326788844).

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

245091612 is a wasteful number, since it uses less digits than its factorization.

245091612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20424308 (or 20424306 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 245091612 is about 15655.4020069751. The cubic root of 245091612 is about 625.8104575062.

The spelling of 245091612 in words is "two hundred forty-five million, ninety-one thousand, six hundred twelve".