2138950963 has 2 divisors, whose sum is σ = 2138950964. Its totient is φ = 2138950962.

The previous prime is 2138950949. The next prime is 2138950993. The reversal of 2138950963 is 3690598312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2138950963 is a prime.

It is a super-2 number, since 2×2138950963² = 9150222444237254738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2138950993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069475481 + 1069475482.

It is an arithmetic number, because the mean of its divisors is an integer number (1069475482).

Almost surely, 2^2138950963 is an apocalyptic number.

2138950963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138950963 is an equidigital number, since it uses as much as digits as its factorization.

2138950963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 2138950963 is about 46248.7941788756. The cubic root of 2138950963 is about 1288.4481394805.

The spelling of 2138950963 in words is "two billion, one hundred thirty-eight million, nine hundred fifty thousand, nine hundred sixty-three".