75154969 has 2 divisors, whose sum is σ = 75154970. Its totient is φ = 75154968.

The previous prime is 75154949. The next prime is 75154973. The reversal of 75154969 is 96945157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43401744 + 31753225 = 6588^2 + 5635^2 .

It is an emirp because it is prime and its reverse (96945157) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75154969 - 2¹¹ = 75152921 is a prime.

It is a super-2 number, since 2×75154969² = 11296538730781922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75154939) 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, 37577484 + 37577485.

It is an arithmetic number, because the mean of its divisors is an integer number (37577485).

Almost surely, 2^75154969 is an apocalyptic number.

It is an amenable number.

75154969 is a deficient number, since it is larger than the sum of its proper divisors (1).

75154969 is an equidigital number, since it uses as much as digits as its factorization.

75154969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 46.

The square root of 75154969 is about 8669.1965602356. The cubic root of 75154969 is about 422.0065904199.

The spelling of 75154969 in words is "seventy-five million, one hundred fifty-four thousand, nine hundred sixty-nine".