7142561541 has 12 divisors (see below), whose sum is σ = 10649841280. Its totient is φ = 4608104040.

The previous prime is 7142561537. The next prime is 7142561581. The reversal of 7142561541 is 1451652417.

7142561541 is a `hidden beast` number, since 7 + 1 + 42 + 561 + 54 + 1 = 666.

It is not a de Polignac number, because 7142561541 - 2² = 7142561537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7142561496 and 7142561505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142561501) 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, 12800011 + ... + 12800568.

Almost surely, 2^7142561541 is an apocalyptic number.

It is an amenable number.

7142561541 is a deficient number, since it is larger than the sum of its proper divisors (3507279739).

7142561541 is a wasteful number, since it uses less digits than its factorization.

7142561541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25600616 (or 25600613 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 7142561541 is about 84513.6766505872. The cubic root of 7142561541 is about 1925.8302184684.

The spelling of 7142561541 in words is "seven billion, one hundred forty-two million, five hundred sixty-one thousand, five hundred forty-one".