1405102155251 has 2 divisors, whose sum is σ = 1405102155252. Its totient is φ = 1405102155250.

The previous prime is 1405102155229. The next prime is 1405102155257. The reversal of 1405102155251 is 1525512015041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405102155251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1405102155257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702551077625 + 702551077626.

It is an arithmetic number, because the mean of its divisors is an integer number (702551077626).

Almost surely, 2^{1405102155251} is an apocalyptic number.

1405102155251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405102155251 is an equidigital number, since it uses as much as digits as its factorization.

1405102155251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 1405102155251 in words is "one trillion, four hundred five billion, one hundred two million, one hundred fifty-five thousand, two hundred fifty-one".