1401524623 has 2 divisors, whose sum is σ = 1401524624. Its totient is φ = 1401524622.

The previous prime is 1401524609. The next prime is 1401524651. The reversal of 1401524623 is 3264251041.

It is an a-pointer prime, because the next prime (1401524651) can be obtained adding 1401524623 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (3264251041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401524623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401524591 and 1401524600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401524653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700762311 + 700762312.

It is an arithmetic number, because the mean of its divisors is an integer number (700762312).

Almost surely, 2^1401524623 is an apocalyptic number.

1401524623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401524623 is an equidigital number, since it uses as much as digits as its factorization.

1401524623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1401524623 is about 37436.9419557741. The cubic root of 1401524623 is about 1119.0948849697.

Adding to 1401524623 its reverse (3264251041), we get a palindrome (4665775664).

The spelling of 1401524623 in words is "one billion, four hundred one million, five hundred twenty-four thousand, six hundred twenty-three".