1530421477 has 8 divisors (see below), whose sum is σ = 1665138776. Its totient is φ = 1398131712.

The previous prime is 1530421469. The next prime is 1530421493. The reversal of 1530421477 is 7741240351.

It can be written as a sum of positive squares in 4 ways, for example, as 125316 + 1530296161 = 354^2 + 39119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1530421477 - 2³ = 1530421469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530421457) 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, 605568 + ... + 608089.

It is an arithmetic number, because the mean of its divisors is an integer number (208142347).

Almost surely, 2^1530421477 is an apocalyptic number.

It is an amenable number.

1530421477 is a deficient number, since it is larger than the sum of its proper divisors (134717299).

1530421477 is a wasteful number, since it uses less digits than its factorization.

1530421477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213767.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1530421477 is about 39120.6016952705. The cubic root of 1530421477 is about 1152.4011523801.

The spelling of 1530421477 in words is "one billion, five hundred thirty million, four hundred twenty-one thousand, four hundred seventy-seven".