7142057 has 12 divisors (see below), whose sum is σ = 8174796. Its totient is φ = 6201600.

The previous prime is 7142053. The next prime is 7142111. The reversal of 7142057 is 7502417.

It can be written as a sum of positive squares in 6 ways, for example, as 151321 + 6990736 = 389^2 + 2644^2 .

It is not a de Polignac number, because 7142057 - 2² = 7142053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142053) 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, 2807 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (681233).

Almost surely, 2^7142057 is an apocalyptic number.

It is an amenable number.

7142057 is a deficient number, since it is larger than the sum of its proper divisors (1032739).

7142057 is a wasteful number, since it uses less digits than its factorization.

7142057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 7142057 is about 2672.4627219103. The cubic root of 7142057 is about 192.5784871376.

The spelling of 7142057 in words is "seven million, one hundred forty-two thousand, fifty-seven".