1530222645 has 16 divisors (see below), whose sum is σ = 2798121600. Its totient is φ = 699530304.

The previous prime is 1530222641. The next prime is 1530222697. The reversal of 1530222645 is 5462220351.

It is not a de Polignac number, because 1530222645 - 2² = 1530222641 is a prime.

It is a super-3 number, since 3×1530222645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530222641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7286670 + ... + 7286879.

It is an arithmetic number, because the mean of its divisors is an integer number (174882600).

Almost surely, 2^1530222645 is an apocalyptic number.

1530222645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530222645 is a deficient number, since it is larger than the sum of its proper divisors (1267898955).

1530222645 is a wasteful number, since it uses less digits than its factorization.

1530222645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14573564.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1530222645 is about 39118.0603430180. The cubic root of 1530222645 is about 1152.3512436560.

Adding to 1530222645 its reverse (5462220351), we get a palindrome (6992442996).

The spelling of 1530222645 in words is "one billion, five hundred thirty million, two hundred twenty-two thousand, six hundred forty-five".