7145872142 has 4 divisors (see below), whose sum is σ = 10718808216. Its totient is φ = 3572936070.

The previous prime is 7145872121. The next prime is 7145872163. The reversal of 7145872142 is 2412785417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2412785417 = 7 ⋅344683631.

It is an interprime number because it is at equal distance from previous prime (7145872121) and next prime (7145872163).

It is a self number, because there is not a number n which added to its sum of digits gives 7145872142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786468034 + ... + 1786468037.

It is an arithmetic number, because the mean of its divisors is an integer number (2679702054).

Almost surely, 2^7145872142 is an apocalyptic number.

7145872142 is a deficient number, since it is larger than the sum of its proper divisors (3572936074).

7145872142 is a wasteful number, since it uses less digits than its factorization.

7145872142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572936073.

The product of its digits is 125440, while the sum is 41.

The square root of 7145872142 is about 84533.2605664776. The cubic root of 7145872142 is about 1926.1277154106.

The spelling of 7145872142 in words is "seven billion, one hundred forty-five million, eight hundred seventy-two thousand, one hundred forty-two".