121407672 has 16 divisors (see below), whose sum is σ = 303519240. Its totient is φ = 40469216.

The previous prime is 121407661. The next prime is 121407673. The reversal of 121407672 is 276704121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121407673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529303 + ... + 2529350.

Almost surely, 2^121407672 is an apocalyptic number.

121407672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121407672 is an abundant number, since it is smaller than the sum of its proper divisors (182111568).

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

121407672 is a wasteful number, since it uses less digits than its factorization.

121407672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058662 (or 5058658 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 121407672 is about 11018.5149634604. The cubic root of 121407672 is about 495.1635986128.

The spelling of 121407672 in words is "one hundred twenty-one million, four hundred seven thousand, six hundred seventy-two".