1401530 has 16 divisors (see below), whose sum is σ = 2717064. Its totient is φ = 517440.

The previous prime is 1401529. The next prime is 1401559. The reversal of 1401530 is 351041.

It can be written as a sum of positive squares in 4 ways, for example, as 724201 + 677329 = 851^2 + 823^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5261 + ... + 5520.

2^1401530 is an apocalyptic number.

1401530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401530 is a deficient number, since it is larger than the sum of its proper divisors (1315534).

1401530 is a wasteful number, since it uses less digits than its factorization.

1401530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10801.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1401530 is about 1183.8623230765. The cubic root of 1401530 is about 111.9096316117.

Adding to 1401530 its reverse (351041), we get a palindrome (1752571).

The spelling of 1401530 in words is "one million, four hundred one thousand, five hundred thirty".