1401543307 has 2 divisors, whose sum is σ = 1401543308. Its totient is φ = 1401543306.

The previous prime is 1401543287. The next prime is 1401543323. The reversal of 1401543307 is 7033451041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401543307 - 2⁷ = 1401543179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401543107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700771653 + 700771654.

It is an arithmetic number, because the mean of its divisors is an integer number (700771654).

Almost surely, 2^1401543307 is an apocalyptic number.

1401543307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401543307 is an equidigital number, since it uses as much as digits as its factorization.

1401543307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1401543307 is about 37437.1914945553. The cubic root of 1401543307 is about 1119.0998579055.

Adding to 1401543307 its reverse (7033451041), we get a palindrome (8434994348).

The spelling of 1401543307 in words is "one billion, four hundred one million, five hundred forty-three thousand, three hundred seven".