1531642134 has 32 divisors (see below), whose sum is σ = 3457002240. Its totient is φ = 448128800.

The previous prime is 1531642109. The next prime is 1531642139. The reversal of 1531642134 is 4312461351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531642139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398202 + ... + 402029.

It is an arithmetic number, because the mean of its divisors is an integer number (108031320).

Almost surely, 2^1531642134 is an apocalyptic number.

1531642134 is an abundant number, since it is smaller than the sum of its proper divisors (1925360106).

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

1531642134 is a wasteful number, since it uses less digits than its factorization.

1531642134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800276.

The product of its digits is 8640, while the sum is 30.

The square root of 1531642134 is about 39136.1997899643. The cubic root of 1531642134 is about 1152.7074542129.

The spelling of 1531642134 in words is "one billion, five hundred thirty-one million, six hundred forty-two thousand, one hundred thirty-four".