1530401663 has 24 divisors (see below), whose sum is σ = 1811489184. Its totient is φ = 1288896000.

The previous prime is 1530401657. The next prime is 1530401671. The reversal of 1530401663 is 3661040351.

It is a happy number.

It is not a de Polignac number, because 1530401663 - 2⁸ = 1530401407 is a prime.

It is a super-2 number, since 2×1530401663² = 4684258500226331138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530401603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1394531 + ... + 1395627.

It is an arithmetic number, because the mean of its divisors is an integer number (75478716).

Almost surely, 2^1530401663 is an apocalyptic number.

1530401663 is a deficient number, since it is larger than the sum of its proper divisors (281087521).

1530401663 is a wasteful number, since it uses less digits than its factorization.

1530401663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1530401663 is about 39120.3484519246. The cubic root of 1530401663 is about 1152.3961790715.

The spelling of 1530401663 in words is "one billion, five hundred thirty million, four hundred one thousand, six hundred sixty-three".