121947148 has 12 divisors (see below), whose sum is σ = 213493000. Its totient is φ = 60949152.

The previous prime is 121947131. The next prime is 121947193. The reversal of 121947148 is 841749121.

It is a super-2 number, since 2×121947148² = 29742213810667808, which contains 22 as substring.

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, 9640 + ... + 18352.

Almost surely, 2^121947148 is an apocalyptic number.

It is an amenable number.

121947148 is a deficient number, since it is larger than the sum of its proper divisors (91545852).

121947148 is a wasteful number, since it uses less digits than its factorization.

121947148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216 (or 12214 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 121947148 is about 11042.9682603909. The cubic root of 121947148 is about 495.8959361548.

The spelling of 121947148 in words is "one hundred twenty-one million, nine hundred forty-seven thousand, one hundred forty-eight".