75752137 has 4 divisors (see below), whose sum is σ = 75921300. Its totient is φ = 75582976.

The previous prime is 75752123. The next prime is 75752141. The reversal of 75752137 is 73125757.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39137536 + 36614601 = 6256^2 + 6051^2 .

It is a cyclic number.

It is not a de Polignac number, because 75752137 - 2¹⁹ = 75227849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75752096 and 75752105.

It is not an unprimeable number, because it can be changed into a prime (75752167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83908 + ... + 84805.

It is an arithmetic number, because the mean of its divisors is an integer number (18980325).

Almost surely, 2^75752137 is an apocalyptic number.

It is an amenable number.

75752137 is a deficient number, since it is larger than the sum of its proper divisors (169163).

75752137 is a wasteful number, since it uses less digits than its factorization.

75752137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169162.

The product of its digits is 51450, while the sum is 37.

The square root of 75752137 is about 8703.5703593410. The cubic root of 75752137 is about 423.1213727310.

The spelling of 75752137 in words is "seventy-five million, seven hundred fifty-two thousand, one hundred thirty-seven".