149358161 has 2 divisors, whose sum is σ = 149358162. Its totient is φ = 149358160.

The previous prime is 149358119. The next prime is 149358173. The reversal of 149358161 is 161853941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 47348161 = 10100^2 + 6881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149358161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149358361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74679080 + 74679081.

It is an arithmetic number, because the mean of its divisors is an integer number (74679081).

Almost surely, 2^149358161 is an apocalyptic number.

It is an amenable number.

149358161 is a deficient number, since it is larger than the sum of its proper divisors (1).

149358161 is an equidigital number, since it uses as much as digits as its factorization.

149358161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 149358161 is about 12221.2176561912. The cubic root of 149358161 is about 530.5703614194.

The spelling of 149358161 in words is "one hundred forty-nine million, three hundred fifty-eight thousand, one hundred sixty-one".