75453139 has 2 divisors, whose sum is σ = 75453140. Its totient is φ = 75453138.

The previous prime is 75453127. The next prime is 75453143. The reversal of 75453139 is 93135457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75453139 - 2⁵ = 75453107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75453098 and 75453107.

It is not a weakly prime, because it can be changed into another prime (75453109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37726569 + 37726570.

It is an arithmetic number, because the mean of its divisors is an integer number (37726570).

Almost surely, 2^75453139 is an apocalyptic number.

75453139 is a deficient number, since it is larger than the sum of its proper divisors (1).

75453139 is an equidigital number, since it uses as much as digits as its factorization.

75453139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 75453139 is about 8686.3766324055. The cubic root of 75453139 is about 422.5639439649.

The spelling of 75453139 in words is "seventy-five million, four hundred fifty-three thousand, one hundred thirty-nine".