7146507442 has 4 divisors (see below), whose sum is σ = 10719761166. Its totient is φ = 3573253720.

The previous prime is 7146507383. The next prime is 7146507443. The reversal of 7146507442 is 2447056417.

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

It can be written as a sum of positive squares in only one way, i.e., 6299755641 + 846751801 = 79371^2 + 29099^2 .

It is a super-2 number, since 2×7146507442² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7146507395 and 7146507404.

It is not an unprimeable number, because it can be changed into a prime (7146507443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786626859 + ... + 1786626862.

Almost surely, 2^7146507442 is an apocalyptic number.

7146507442 is a deficient number, since it is larger than the sum of its proper divisors (3573253724).

7146507442 is a wasteful number, since it uses less digits than its factorization.

7146507442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573253723.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 7146507442 is about 84537.0181754715. The cubic root of 7146507442 is about 1926.1847941759.

The spelling of 7146507442 in words is "seven billion, one hundred forty-six million, five hundred seven thousand, four hundred forty-two".