147750527421 has 24 divisors (see below), whose sum is σ = 249095119104. Its totient is φ = 82632512160.

The previous prime is 147750527387. The next prime is 147750527429. The reversal of 147750527421 is 124725057741.

It is a happy number.

147750527421 is a `hidden beast` number, since 1 + 4 + 77 + 50 + 527 + 4 + 2 + 1 = 666.

147750527421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 147750527421 - 2¹⁵ = 147750494653 is a prime.

It is a super-2 number, since 2×147750527421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147750527429) 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 23 ways as a sum of consecutive naturals, for example, 24946470 + ... + 24952391.

It is an arithmetic number, because the mean of its divisors is an integer number (10378963296).

Almost surely, 2^147750527421 is an apocalyptic number.

It is an amenable number.

147750527421 is a deficient number, since it is larger than the sum of its proper divisors (101344591683).

147750527421 is a wasteful number, since it uses less digits than its factorization.

147750527421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49898921 (or 49898918 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 45.

The spelling of 147750527421 in words is "one hundred forty-seven billion, seven hundred fifty million, five hundred twenty-seven thousand, four hundred twenty-one".