7146861547 has 4 divisors (see below), whose sum is σ = 8167841776. Its totient is φ = 6125881320.

The previous prime is 7146861539. The next prime is 7146861583. The reversal of 7146861547 is 7451686417.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7146861547 - 2³ = 7146861539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7146861547.

It is not an unprimeable number, because it can be changed into a prime (7146861247) 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, 510490104 + ... + 510490117.

It is an arithmetic number, because the mean of its divisors is an integer number (2041960444).

Almost surely, 2^7146861547 is an apocalyptic number.

7146861547 is a deficient number, since it is larger than the sum of its proper divisors (1020980229).

7146861547 is a wasteful number, since it uses less digits than its factorization.

7146861547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020980228.

The product of its digits is 1128960, while the sum is 49.

The square root of 7146861547 is about 84539.1125278708. The cubic root of 7146861547 is about 1926.2166074034.

The spelling of 7146861547 in words is "seven billion, one hundred forty-six million, eight hundred sixty-one thousand, five hundred forty-seven".