138902963 has 2 divisors, whose sum is σ = 138902964. Its totient is φ = 138902962.

The previous prime is 138902899. The next prime is 138902969. The reversal of 138902963 is 369209831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138902963 - 2⁶ = 138902899 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138902963.

It is not a weakly prime, because it can be changed into another prime (138902969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69451481 + 69451482.

It is an arithmetic number, because the mean of its divisors is an integer number (69451482).

Almost surely, 2^138902963 is an apocalyptic number.

138902963 is a deficient number, since it is larger than the sum of its proper divisors (1).

138902963 is an equidigital number, since it uses as much as digits as its factorization.

138902963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 138902963 is about 11785.7101186140. The cubic root of 138902963 is about 517.8895763490.

The spelling of 138902963 in words is "one hundred thirty-eight million, nine hundred two thousand, nine hundred sixty-three".