149189107 has 2 divisors, whose sum is σ = 149189108. Its totient is φ = 149189106.

The previous prime is 149189077. The next prime is 149189113. The reversal of 149189107 is 701981941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149189107 - 2⁷ = 149188979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149189107.

It is not a weakly prime, because it can be changed into another prime (149189177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74594553 + 74594554.

It is an arithmetic number, because the mean of its divisors is an integer number (74594554).

Almost surely, 2^149189107 is an apocalyptic number.

149189107 is a deficient number, since it is larger than the sum of its proper divisors (1).

149189107 is an equidigital number, since it uses as much as digits as its factorization.

149189107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 149189107 is about 12214.2992840359. The cubic root of 149189107 is about 530.3701069804.

It can be divided in two parts, 14918 and 9107, that added together give a square (24025 = 155²).

The spelling of 149189107 in words is "one hundred forty-nine million, one hundred eighty-nine thousand, one hundred seven".