121471057 has 8 divisors (see below), whose sum is σ = 122584616. Its totient is φ = 120362112.

The previous prime is 121471013. The next prime is 121471079. The reversal of 121471057 is 750174121.

It can be written as a sum of positive squares in 4 ways, for example, as 21150801 + 100320256 = 4599^2 + 10016^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121471057 - 2¹⁹ = 120946769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121471157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70903 + ... + 72595.

It is an arithmetic number, because the mean of its divisors is an integer number (15323077).

Almost surely, 2^121471057 is an apocalyptic number.

It is an amenable number.

121471057 is a deficient number, since it is larger than the sum of its proper divisors (1113559).

121471057 is a wasteful number, since it uses less digits than its factorization.

121471057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 121471057 is about 11021.3908831871. The cubic root of 121471057 is about 495.2497559474.

The spelling of 121471057 in words is "one hundred twenty-one million, four hundred seventy-one thousand, fifty-seven".