1401125431 has 32 divisors (see below), whose sum is σ = 1609445376. Its totient is φ = 1212288000.

The previous prime is 1401125387. The next prime is 1401125449. The reversal of 1401125431 is 1345211041.

It is not a de Polignac number, because 1401125431 - 2⁹ = 1401124919 is a prime.

It is a super-2 number, since 2×1401125431² = 3926304946789871522, 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 (1401125461) 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 31 ways as a sum of consecutive naturals, for example, 1137586 + ... + 1138816.

It is an arithmetic number, because the mean of its divisors is an integer number (50295168).

Almost surely, 2^1401125431 is an apocalyptic number.

1401125431 is a deficient number, since it is larger than the sum of its proper divisors (208319945).

1401125431 is a wasteful number, since it uses less digits than its factorization.

1401125431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

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

The square root of 1401125431 is about 37431.6100508648. The cubic root of 1401125431 is about 1118.9886254152.

Adding to 1401125431 its reverse (1345211041), we get a palindrome (2746336472).

The spelling of 1401125431 in words is "one billion, four hundred one million, one hundred twenty-five thousand, four hundred thirty-one".