75151243 has 2 divisors, whose sum is σ = 75151244. Its totient is φ = 75151242.

The previous prime is 75151231. The next prime is 75151253. The reversal of 75151243 is 34215157.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75151243 - 2¹³ = 75143051 is a prime.

It is not a weakly prime, because it can be changed into another prime (75151253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37575621 + 37575622.

It is an arithmetic number, because the mean of its divisors is an integer number (37575622).

Almost surely, 2^75151243 is an apocalyptic number.

75151243 is a deficient number, since it is larger than the sum of its proper divisors (1).

75151243 is an equidigital number, since it uses as much as digits as its factorization.

75151243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 75151243 is about 8668.9816587648. The cubic root of 75151243 is about 421.9996162856. Note that the first 3 decimals are identical.

The spelling of 75151243 in words is "seventy-five million, one hundred fifty-one thousand, two hundred forty-three".