75430061 has 6 divisors (see below), whose sum is σ = 87745230. Its totient is φ = 64654296.

The previous prime is 75430051. The next prime is 75430067. The reversal of 75430061 is 16003457.

It can be written as a sum of positive squares in only one way, i.e., 63904036 + 11526025 = 7994^2 + 3395^2 .

It is not a de Polignac number, because 75430061 - 2²² = 71235757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75430061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75430067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 769646 + ... + 769743.

It is an arithmetic number, because the mean of its divisors is an integer number (14624205).

Almost surely, 2^75430061 is an apocalyptic number.

It is an amenable number.

75430061 is a deficient number, since it is larger than the sum of its proper divisors (12315169).

75430061 is a wasteful number, since it uses less digits than its factorization.

75430061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539403 (or 1539396 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 75430061 is about 8685.0481288246. The cubic root of 75430061 is about 422.5208579505.

The spelling of 75430061 in words is "seventy-five million, four hundred thirty thousand, sixty-one".