1530646141 has 4 divisors (see below), whose sum is σ = 1530770112. Its totient is φ = 1530522172.

The previous prime is 1530646123. The next prime is 1530646151. The reversal of 1530646141 is 1416460351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1416460351 = 53 ⋅26725667.

It is a cyclic number.

It is not a de Polignac number, because 1530646141 - 2⁵ = 1530646109 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530646151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41125 + ... + 68938.

It is an arithmetic number, because the mean of its divisors is an integer number (382692528).

Almost surely, 2^1530646141 is an apocalyptic number.

It is an amenable number.

1530646141 is a deficient number, since it is larger than the sum of its proper divisors (123971).

1530646141 is a wasteful number, since it uses less digits than its factorization.

1530646141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123970.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1530646141 is about 39123.4730181256. The cubic root of 1530646141 is about 1152.4575399806.

The spelling of 1530646141 in words is "one billion, five hundred thirty million, six hundred forty-six thousand, one hundred forty-one".