1361406623 has 2 divisors, whose sum is σ = 1361406624. Its totient is φ = 1361406622.

The previous prime is 1361406577. The next prime is 1361406659. The reversal of 1361406623 is 3266041631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361406623 - 2¹² = 1361402527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1361406623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361406023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680703311 + 680703312.

It is an arithmetic number, because the mean of its divisors is an integer number (680703312).

Almost surely, 2^1361406623 is an apocalyptic number.

1361406623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361406623 is an equidigital number, since it uses as much as digits as its factorization.

1361406623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1361406623 is about 36897.2441111799. The cubic root of 1361406623 is about 1108.3134908515.

The spelling of 1361406623 in words is "one billion, three hundred sixty-one million, four hundred six thousand, six hundred twenty-three".