1534431604 has 6 divisors (see below), whose sum is σ = 2685255314. Its totient is φ = 767215800.

The previous prime is 1534431589. The next prime is 1534431617. The reversal of 1534431604 is 4061344351.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1366780900 + 167650704 = 36970^2 + 12948^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 191803947 + ... + 191803954.

Almost surely, 2^1534431604 is an apocalyptic number.

It is an amenable number.

1534431604 is a deficient number, since it is larger than the sum of its proper divisors (1150823710).

1534431604 is a wasteful number, since it uses less digits than its factorization.

1534431604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383607905 (or 383607903 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1534431604 is about 39171.8215558072. The cubic root of 1534431604 is about 1153.4068109676.

Adding to 1534431604 its reverse (4061344351), we get a palindrome (5595775955).

The spelling of 1534431604 in words is "one billion, five hundred thirty-four million, four hundred thirty-one thousand, six hundred four".