7540712169 has 12 divisors (see below), whose sum is σ = 10305497328. Its totient is φ = 4904524960.

The previous prime is 7540712161. The next prime is 7540712177. The reversal of 7540712169 is 9612170457.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7540712161) and next prime (7540712177).

It is not a de Polignac number, because 7540712169 - 2³ = 7540712161 is a prime.

It is a super-2 number, since 2×7540712169² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7540712169.

It is not an unprimeable number, because it can be changed into a prime (7540712161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742599 + ... + 752684.

It is an arithmetic number, because the mean of its divisors is an integer number (858791444).

Almost surely, 2^7540712169 is an apocalyptic number.

It is an amenable number.

7540712169 is a deficient number, since it is larger than the sum of its proper divisors (2764785159).

7540712169 is a wasteful number, since it uses less digits than its factorization.

7540712169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495368 (or 1495327 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 7540712169 is about 86837.2740762859. The cubic root of 7540712169 is about 1960.9692700889.

The spelling of 7540712169 in words is "seven billion, five hundred forty million, seven hundred twelve thousand, one hundred sixty-nine".