47121015 has 16 divisors (see below), whose sum is σ = 75737088. Its totient is φ = 25016736.

The previous prime is 47120993. The next prime is 47121029. The reversal of 47121015 is 51012174.

It is a happy number.

It is not a de Polignac number, because 47121015 - 2⁹ = 47120503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47120982 and 47121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3699 + ... + 10388.

It is an arithmetic number, because the mean of its divisors is an integer number (4733568).

Almost surely, 2^47121015 is an apocalyptic number.

47121015 is a deficient number, since it is larger than the sum of its proper divisors (28616073).

47121015 is a wasteful number, since it uses less digits than its factorization.

47121015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14318.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 47121015 is about 6864.4748524559. The cubic root of 47121015 is about 361.1920745395.

Adding to 47121015 its reverse (51012174), we get a palindrome (98133189).

The spelling of 47121015 in words is "forty-seven million, one hundred twenty-one thousand, fifteen".