75271157 has 16 divisors (see below), whose sum is σ = 85034880. Its totient is φ = 66107712.

The previous prime is 75271151. The next prime is 75271169. The reversal of 75271157 is 75117257.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 75271157 - 2⁶ = 75271093 is a prime.

It is a super-3 number, since 3×75271157³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75271151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67319 + ... + 68427.

It is an arithmetic number, because the mean of its divisors is an integer number (5314680).

Almost surely, 2^75271157 is an apocalyptic number.

It is an amenable number.

75271157 is a deficient number, since it is larger than the sum of its proper divisors (9763723).

75271157 is a wasteful number, since it uses less digits than its factorization.

75271157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372.

The product of its digits is 17150, while the sum is 35.

The square root of 75271157 is about 8675.8951699522. The cubic root of 75271157 is about 422.2239495492.

The spelling of 75271157 in words is "seventy-five million, two hundred seventy-one thousand, one hundred fifty-seven".