1530491229 has 24 divisors (see below), whose sum is σ = 2259342072. Its totient is φ = 998000640.

The previous prime is 1530491219. The next prime is 1530491233. The reversal of 1530491229 is 9221940351.

It can be written as a sum of positive squares in 4 ways, for example, as 187635204 + 1342856025 = 13698^2 + 36645^2 .

It is not a de Polignac number, because 1530491229 - 2⁷ = 1530491101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1530491193 and 1530491202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530491219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155989 + ... + 165509.

It is an arithmetic number, because the mean of its divisors is an integer number (94139253).

Almost surely, 2^1530491229 is an apocalyptic number.

It is an amenable number.

1530491229 is a deficient number, since it is larger than the sum of its proper divisors (728850843).

1530491229 is a wasteful number, since it uses less digits than its factorization.

1530491229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1530491229 is about 39121.4931846932. The cubic root of 1530491229 is about 1152.4186597716.

The spelling of 1530491229 in words is "one billion, five hundred thirty million, four hundred ninety-one thousand, two hundred twenty-nine".