1532135671 has 4 divisors (see below), whose sum is σ = 1671420744. Its totient is φ = 1392850600.

The previous prime is 1532135669. The next prime is 1532135729. The reversal of 1532135671 is 1765312351.

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

It is a cyclic number.

It is not a de Polignac number, because 1532135671 - 2¹ = 1532135669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1532135611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69642520 + ... + 69642541.

It is an arithmetic number, because the mean of its divisors is an integer number (417855186).

Almost surely, 2^1532135671 is an apocalyptic number.

1532135671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1532135671 is a deficient number, since it is larger than the sum of its proper divisors (139285073).

1532135671 is a wasteful number, since it uses less digits than its factorization.

1532135671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139285072.

The product of its digits is 18900, while the sum is 34.

The square root of 1532135671 is about 39142.5046592576. The cubic root of 1532135671 is about 1152.8312522098.

The spelling of 1532135671 in words is "one billion, five hundred thirty-two million, one hundred thirty-five thousand, six hundred seventy-one".