1532142857 has 16 divisors (see below), whose sum is σ = 1794355200. Its totient is φ = 1281106320.

The previous prime is 1532142851. The next prime is 1532142863. The reversal of 1532142857 is 7582412351.

It is an interprime number because it is at equal distance from previous prime (1532142851) and next prime (1532142863).

It is a cyclic number.

It is not a de Polignac number, because 1532142857 - 2⁶ = 1532142793 is a prime.

It is a super-2 number, since 2×1532142857² = 4694923468512244898, which contains 22 as substring.

1532142857 is a modest number, since divided by 142857 gives 1532 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1532142857.

It is not an unprimeable number, because it can be changed into a prime (1532142851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39944 + ... + 68262.

It is an arithmetic number, because the mean of its divisors is an integer number (112147200).

Almost surely, 2^1532142857 is an apocalyptic number.

It is an amenable number.

1532142857 is a deficient number, since it is larger than the sum of its proper divisors (262212343).

1532142857 is a wasteful number, since it uses less digits than its factorization.

1532142857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28516.

The product of its digits is 67200, while the sum is 38.

The square root of 1532142857 is about 39142.5964519473. The cubic root of 1532142857 is about 1152.8330545377.

The spelling of 1532142857 in words is "one billion, five hundred thirty-two million, one hundred forty-two thousand, eight hundred fifty-seven".