527642121 has 16 divisors (see below), whose sum is σ = 723647936. Its totient is φ = 341784576.

The previous prime is 527642119. The next prime is 527642123. The reversal of 527642121 is 121246725.

It is an interprime number because it is at equal distance from previous prime (527642119) and next prime (527642123).

It is not a de Polignac number, because 527642121 - 2¹ = 527642119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (527642123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14301 + ... + 35493.

It is an arithmetic number, because the mean of its divisors is an integer number (45227996).

Almost surely, 2^527642121 is an apocalyptic number.

It is an amenable number.

527642121 is a deficient number, since it is larger than the sum of its proper divisors (196005815).

527642121 is a wasteful number, since it uses less digits than its factorization.

527642121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21432.

The product of its digits is 6720, while the sum is 30.

The square root of 527642121 is about 22970.4619239579. The cubic root of 527642121 is about 808.0653523791.

Adding to 527642121 its reverse (121246725), we get a palindrome (648888846).

The spelling of 527642121 in words is "five hundred twenty-seven million, six hundred forty-two thousand, one hundred twenty-one".