1530750231 has 10 divisors (see below), whose sum is σ = 2286676392. Its totient is φ = 1020500100.

The previous prime is 1530750197. The next prime is 1530750241. The reversal of 1530750231 is 1320570351.

1530750231 is a `hidden beast` number, since 153 + 0 + 7 + 502 + 3 + 1 = 666.

It is not a de Polignac number, because 1530750231 - 2²⁷ = 1396532503 is a prime.

It is a super-2 number, since 2×1530750231² = 4686392539413106722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1530750195 and 1530750204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530750241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9448995 + ... + 9449156.

Almost surely, 2^1530750231 is an apocalyptic number.

1530750231 is a deficient number, since it is larger than the sum of its proper divisors (755926161).

1530750231 is an equidigital number, since it uses as much as digits as its factorization.

1530750231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18898163 (or 18898154 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 1530750231 is about 39124.8032710709. The cubic root of 1530750231 is about 1152.4836632809.

The spelling of 1530750231 in words is "one billion, five hundred thirty million, seven hundred fifty thousand, two hundred thirty-one".