75161623 has 2 divisors, whose sum is σ = 75161624. Its totient is φ = 75161622.

The previous prime is 75161621. The next prime is 75161633. The reversal of 75161623 is 32616157.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75161623 - 2¹ = 75161621 is a prime.

Together with 75161621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75161621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37580811 + 37580812.

It is an arithmetic number, because the mean of its divisors is an integer number (37580812).

Almost surely, 2^75161623 is an apocalyptic number.

75161623 is a deficient number, since it is larger than the sum of its proper divisors (1).

75161623 is an equidigital number, since it uses as much as digits as its factorization.

75161623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 75161623 is about 8669.5803243294. The cubic root of 75161623 is about 422.0190444600.

The spelling of 75161623 in words is "seventy-five million, one hundred sixty-one thousand, six hundred twenty-three".