4621450139 has 2 divisors, whose sum is σ = 4621450140. Its totient is φ = 4621450138.

The previous prime is 4621450129. The next prime is 4621450159. The reversal of 4621450139 is 9310541264.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4621450139 - 2²⁰ = 4620401563 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 4621450099 and 4621450108.

It is not a weakly prime, because it can be changed into another prime (4621450129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310725069 + 2310725070.

It is an arithmetic number, because the mean of its divisors is an integer number (2310725070).

Almost surely, 2^4621450139 is an apocalyptic number.

4621450139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4621450139 is an equidigital number, since it uses as much as digits as its factorization.

4621450139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 4621450139 is about 67981.2484366093. The cubic root of 4621450139 is about 1665.6845491719.

The spelling of 4621450139 in words is "four billion, six hundred twenty-one million, four hundred fifty thousand, one hundred thirty-nine".