527145421 has 16 divisors (see below), whose sum is σ = 594759168. Its totient is φ = 462873600.

The previous prime is 527145419. The next prime is 527145439. The reversal of 527145421 is 124541725.

It is a cyclic number.

It is not a de Polignac number, because 527145421 - 2¹ = 527145419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (527145121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228345 + ... + 230641.

It is an arithmetic number, because the mean of its divisors is an integer number (37172448).

Almost surely, 2^527145421 is an apocalyptic number.

It is an amenable number.

527145421 is a deficient number, since it is larger than the sum of its proper divisors (67613747).

527145421 is a wasteful number, since it uses less digits than its factorization.

527145421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012.

The product of its digits is 11200, while the sum is 31.

The square root of 527145421 is about 22959.6476671573. The cubic root of 527145421 is about 807.8117132467.

The spelling of 527145421 in words is "five hundred twenty-seven million, one hundred forty-five thousand, four hundred twenty-one".