121656070 has 8 divisors (see below), whose sum is σ = 218980944. Its totient is φ = 48662424.

The previous prime is 121656049. The next prime is 121656079. The reversal of 121656070 is 70656121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121656079) 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, 6082794 + ... + 6082813.

It is an arithmetic number, because the mean of its divisors is an integer number (27372618).

Almost surely, 2^121656070 is an apocalyptic number.

121656070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121656070 is a deficient number, since it is larger than the sum of its proper divisors (97324874).

121656070 is a wasteful number, since it uses less digits than its factorization.

121656070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12165614.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 121656070 is about 11029.7810495041. The cubic root of 121656070 is about 495.5010672892.

The spelling of 121656070 in words is "one hundred twenty-one million, six hundred fifty-six thousand, seventy".