75348157 has 4 divisors (see below), whose sum is σ = 75511360. Its totient is φ = 75184956.

The previous prime is 75348151. The next prime is 75348179. The reversal of 75348157 is 75184357.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75184357 = 149 ⋅504593.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75348157 is a prime.

It is a super-3 number, since 3×75348157³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75348151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80907 + ... + 81832.

It is an arithmetic number, because the mean of its divisors is an integer number (18877840).

Almost surely, 2^75348157 is an apocalyptic number.

It is an amenable number.

75348157 is a deficient number, since it is larger than the sum of its proper divisors (163203).

75348157 is a wasteful number, since it uses less digits than its factorization.

75348157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163202.

The product of its digits is 117600, while the sum is 40.

The square root of 75348157 is about 8680.3316180893. The cubic root of 75348157 is about 422.3678743748.

The spelling of 75348157 in words is "seventy-five million, three hundred forty-eight thousand, one hundred fifty-seven".