7142128245 has 96 divisors (see below), whose sum is σ = 14854275072. Its totient is φ = 3103790976.

The previous prime is 7142128237. The next prime is 7142128249. The reversal of 7142128245 is 5428212417.

It is not a de Polignac number, because 7142128245 - 2³ = 7142128237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142128249) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1206964 + ... + 1212866.

It is an arithmetic number, because the mean of its divisors is an integer number (154732032).

Almost surely, 2^7142128245 is an apocalyptic number.

It is an amenable number.

7142128245 is an abundant number, since it is smaller than the sum of its proper divisors (7712146827).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7142128245 is a wasteful number, since it uses less digits than its factorization.

7142128245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111 (or 6108 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 7142128245 is about 84511.1131449586. The cubic root of 7142128245 is about 1925.7912748578.

The spelling of 7142128245 in words is "seven billion, one hundred forty-two million, one hundred twenty-eight thousand, two hundred forty-five".