1401231 has 32 divisors (see below), whose sum is σ = 2222080. Its totient is φ = 777600.

The previous prime is 1401217. The next prime is 1401233. The reversal of 1401231 is 1321041.

It is a happy number.

It is not a de Polignac number, because 1401231 - 2⁵ = 1401199 is a prime.

It is a super-2 number, since 2×1401231² = 3926896630722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401233) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 22941 + ... + 23001.

It is an arithmetic number, because the mean of its divisors is an integer number (69440).

2^1401231 is an apocalyptic number.

1401231 is a deficient number, since it is larger than the sum of its proper divisors (820849).

1401231 is a wasteful number, since it uses less digits than its factorization.

1401231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1401231 is about 1183.7360347645. The cubic root of 1401231 is about 111.9016728429.

Adding to 1401231 its reverse (1321041), we get a palindrome (2722272).

The spelling of 1401231 in words is "one million, four hundred one thousand, two hundred thirty-one".