1531492066 has 16 divisors (see below), whose sum is σ = 2499457464. Its totient is φ = 699554304.

The previous prime is 1531492063. The next prime is 1531492159. The reversal of 1531492066 is 6602941351.

It can be written as a sum of positive squares in 4 ways, for example, as 856791441 + 674700625 = 29271^2 + 25975^2 .

It is not an unprimeable number, because it can be changed into a prime (1531492063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301105 + ... + 306148.

Almost surely, 2^1531492066 is an apocalyptic number.

1531492066 is a deficient number, since it is larger than the sum of its proper divisors (967965398).

1531492066 is a wasteful number, since it uses less digits than its factorization.

1531492066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607365.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1531492066 is about 39134.2824899090. The cubic root of 1531492066 is about 1152.6698061340.

The spelling of 1531492066 in words is "one billion, five hundred thirty-one million, four hundred ninety-two thousand, sixty-six".