7061138541 has 6 divisors (see below), whose sum is σ = 10199422350. Its totient is φ = 4707425688.

The previous prime is 7061138521. The next prime is 7061138569. The reversal of 7061138541 is 1458311607.

7061138541 is a `hidden beast` number, since 7 + 0 + 611 + 38 + 5 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6690422025 + 370716516 = 81795^2 + 19254^2 .

It is not a de Polignac number, because 7061138541 - 2¹⁵ = 7061105773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7061138496 and 7061138505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7061138521) 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, 392285466 + ... + 392285483.

It is an arithmetic number, because the mean of its divisors is an integer number (1699903725).

Almost surely, 2^7061138541 is an apocalyptic number.

It is an amenable number.

7061138541 is a deficient number, since it is larger than the sum of its proper divisors (3138283809).

7061138541 is a wasteful number, since it uses less digits than its factorization.

7061138541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784570955 (or 784570952 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 7061138541 is about 84030.5809869240. The cubic root of 7061138541 is about 1918.4842765622.

The spelling of 7061138541 in words is "seven billion, sixty-one million, one hundred thirty-eight thousand, five hundred forty-one".