1530217157 has 8 divisors (see below), whose sum is σ = 1762170432. Its totient is φ = 1301601600.

The previous prime is 1530217109. The next prime is 1530217189. The reversal of 1530217157 is 7517120351.

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 1530217157 - 2⁶ = 1530217093 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 (1530217057) 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, 833444 + ... + 835277.

It is an arithmetic number, because the mean of its divisors is an integer number (220271304).

Almost surely, 2^1530217157 is an apocalyptic number.

It is an amenable number.

1530217157 is a deficient number, since it is larger than the sum of its proper divisors (231953275).

1530217157 is a wasteful number, since it uses less digits than its factorization.

1530217157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668859.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 1530217157 is about 39117.9901963278. The cubic root of 1530217157 is about 1152.3498660545.

The spelling of 1530217157 in words is "one billion, five hundred thirty million, two hundred seventeen thousand, one hundred fifty-seven".