75161951 has 2 divisors, whose sum is σ = 75161952. Its totient is φ = 75161950.

The previous prime is 75161941. The next prime is 75161959. The reversal of 75161951 is 15916157.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75161951 - 2²² = 70967647 is a prime.

It is a super-3 number, since 3×75161951³ (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 (75161959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37580975 + 37580976.

It is an arithmetic number, because the mean of its divisors is an integer number (37580976).

Almost surely, 2^75161951 is an apocalyptic number.

75161951 is a deficient number, since it is larger than the sum of its proper divisors (1).

75161951 is an equidigital number, since it uses as much as digits as its factorization.

75161951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 35.

The square root of 75161951 is about 8669.5992410261. The cubic root of 75161951 is about 422.0196583461.

The spelling of 75161951 in words is "seventy-five million, one hundred sixty-one thousand, nine hundred fifty-one".