1401265031 has 2 divisors, whose sum is σ = 1401265032. Its totient is φ = 1401265030.

The previous prime is 1401264989. The next prime is 1401265091. The reversal of 1401265031 is 1305621041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401265031 is a prime.

It is a super-2 number, since 2×1401265031² = 3927087374206861922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1401264988 and 1401265006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401265091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700632515 + 700632516.

It is an arithmetic number, because the mean of its divisors is an integer number (700632516).

Almost surely, 2^1401265031 is an apocalyptic number.

1401265031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401265031 is an equidigital number, since it uses as much as digits as its factorization.

1401265031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1401265031 is about 37433.4747385278. The cubic root of 1401265031 is about 1119.0257873568.

Adding to 1401265031 its reverse (1305621041), we get a palindrome (2706886072).

The spelling of 1401265031 in words is "one billion, four hundred one million, two hundred sixty-five thousand, thirty-one".