75071349 has 6 divisors (see below), whose sum is σ = 108436406. Its totient is φ = 50047560.

The previous prime is 75071341. The next prime is 75071363. The reversal of 75071349 is 94317057.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61121124 + 13950225 = 7818^2 + 3735^2 .

It is not a de Polignac number, because 75071349 - 2³ = 75071341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75071341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4170622 + ... + 4170639.

Almost surely, 2^75071349 is an apocalyptic number.

It is an amenable number.

75071349 is a deficient number, since it is larger than the sum of its proper divisors (33365057).

75071349 is a wasteful number, since it uses less digits than its factorization.

75071349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341267 (or 8341264 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 75071349 is about 8664.3723950440. The cubic root of 75071349 is about 421.8500193274.

The spelling of 75071349 in words is "seventy-five million, seventy-one thousand, three hundred forty-nine".