121609492 has 12 divisors (see below), whose sum is σ = 217344960. Its totient is φ = 59510936.

The previous prime is 121609463. The next prime is 121609513. The reversal of 121609492 is 294906121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323242 + ... + 323617.

It is an arithmetic number, because the mean of its divisors is an integer number (18112080).

Almost surely, 2^121609492 is an apocalyptic number.

It is an amenable number.

121609492 is a deficient number, since it is larger than the sum of its proper divisors (95735468).

121609492 is a wasteful number, since it uses less digits than its factorization.

121609492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646910 (or 646908 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 121609492 is about 11027.6693820589. The cubic root of 121609492 is about 495.4378223430.

The spelling of 121609492 in words is "one hundred twenty-one million, six hundred nine thousand, four hundred ninety-two".