75445151 has 2 divisors, whose sum is σ = 75445152. Its totient is φ = 75445150.

The previous prime is 75445141. The next prime is 75445157. The reversal of 75445151 is 15154457.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75445151 is a prime.

It is a super-3 number, since 3×75445151³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75445157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37722575 + 37722576.

It is an arithmetic number, because the mean of its divisors is an integer number (37722576).

Almost surely, 2^75445151 is an apocalyptic number.

75445151 is a deficient number, since it is larger than the sum of its proper divisors (1).

75445151 is an equidigital number, since it uses as much as digits as its factorization.

75445151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 32.

The square root of 75445151 is about 8685.9168197721. The cubic root of 75445151 is about 422.5490315749.

The spelling of 75445151 in words is "seventy-five million, four hundred forty-five thousand, one hundred fifty-one".