75220151 has 2 divisors, whose sum is σ = 75220152. Its totient is φ = 75220150.

The previous prime is 75220147. The next prime is 75220177. The reversal of 75220151 is 15102257.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15102257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75220151 - 2² = 75220147 is a prime.

It is a super-2 number, since 2×75220151² = 11316142232925602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75220111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37610075 + 37610076.

It is an arithmetic number, because the mean of its divisors is an integer number (37610076).

Almost surely, 2^75220151 is an apocalyptic number.

75220151 is a deficient number, since it is larger than the sum of its proper divisors (1).

75220151 is an equidigital number, since it uses as much as digits as its factorization.

75220151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 75220151 is about 8672.9551480450. The cubic root of 75220151 is about 422.1285574498.

The spelling of 75220151 in words is "seventy-five million, two hundred twenty thousand, one hundred fifty-one".