1401451231 has 16 divisors (see below), whose sum is σ = 1439539200. Its totient is φ = 1364032800.

The previous prime is 1401451189. The next prime is 1401451241. The reversal of 1401451231 is 1321541041.

It is a cyclic number.

It is not a de Polignac number, because 1401451231 - 2¹⁵ = 1401418463 is a prime.

It is a super-2 number, since 2×1401451231² = 3928131105742830722, 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 (1401451241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1976305 + ... + 1977013.

It is an arithmetic number, because the mean of its divisors is an integer number (89971200).

Almost surely, 2^1401451231 is an apocalyptic number.

1401451231 is a deficient number, since it is larger than the sum of its proper divisors (38087969).

1401451231 is a wasteful number, since it uses less digits than its factorization.

1401451231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1401451231 is about 37435.9617346743. The cubic root of 1401451231 is about 1119.0753505179.

Adding to 1401451231 its reverse (1321541041), we get a palindrome (2722992272).

It can be divided in two parts, 140145 and 1231, that added together give a square (141376 = 376²).

The spelling of 1401451231 in words is "one billion, four hundred one million, four hundred fifty-one thousand, two hundred thirty-one".