1401203530 has 16 divisors (see below), whose sum is σ = 2523535560. Its totient is φ = 560177152.

The previous prime is 1401203501. The next prime is 1401203549. The reversal of 1401203530 is 353021041.

It can be written as a sum of positive squares in 4 ways, for example, as 1030217409 + 370986121 = 32097^2 + 19261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1401203498 and 1401203507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18199 + ... + 55978.

Almost surely, 2^1401203530 is an apocalyptic number.

1401203530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401203530 is a deficient number, since it is larger than the sum of its proper divisors (1122332030).

1401203530 is a wasteful number, since it uses less digits than its factorization.

1401203530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76073.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1401203530 is about 37432.6532588862. The cubic root of 1401203530 is about 1119.0094159091.

Adding to 1401203530 its reverse (353021041), we get a palindrome (1754224571).

The spelling of 1401203530 in words is "one billion, four hundred one million, two hundred three thousand, five hundred thirty".