105450139 has 2 divisors, whose sum is σ = 105450140. Its totient is φ = 105450138.

The previous prime is 105450091. The next prime is 105450143. The reversal of 105450139 is 931054501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105450139 - 2⁷ = 105450011 is a prime.

It is a super-2 number, since 2×105450139² = 22239463630238642, which contains 22 as substring.

It is a Chen prime.

It is equal to p_6057073 and since 105450139 and 6057073 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (105450199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52725069 + 52725070.

It is an arithmetic number, because the mean of its divisors is an integer number (52725070).

Almost surely, 2^105450139 is an apocalyptic number.

105450139 is a deficient number, since it is larger than the sum of its proper divisors (1).

105450139 is an equidigital number, since it uses as much as digits as its factorization.

105450139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 105450139 is about 10268.8918097329. The cubic root of 105450139 is about 472.4426013905.

The spelling of 105450139 in words is "one hundred five million, four hundred fifty thousand, one hundred thirty-nine".