7151745541 has 4 divisors (see below), whose sum is σ = 7249714732. Its totient is φ = 7053776352.

The previous prime is 7151745533. The next prime is 7151745563. The reversal of 7151745541 is 1455471517.

It is a happy number.

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 3082581441 + 4069164100 = 55521^2 + 63790^2 .

It is a cyclic number.

It is not a de Polignac number, because 7151745541 - 2³ = 7151745533 is a prime.

It is a super-2 number, since 2×7151745541² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7151745494 and 7151745503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7151745241) 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, 48984486 + ... + 48984631.

It is an arithmetic number, because the mean of its divisors is an integer number (1812428683).

Almost surely, 2^7151745541 is an apocalyptic number.

It is an amenable number.

7151745541 is a deficient number, since it is larger than the sum of its proper divisors (97969191).

7151745541 is an equidigital number, since it uses as much as digits as its factorization.

7151745541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97969190.

The product of its digits is 98000, while the sum is 40.

The square root of 7151745541 is about 84567.9935968685. The cubic root of 7151745541 is about 1926.6552842558.

The spelling of 7151745541 in words is "seven billion, one hundred fifty-one million, seven hundred forty-five thousand, five hundred forty-one".