149081941 has 2 divisors, whose sum is σ = 149081942. Its totient is φ = 149081940.

The previous prime is 149081909. The next prime is 149081969. The reversal of 149081941 is 149180941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145298916 + 3783025 = 12054^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 149081941 - 2⁵ = 149081909 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 149081941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149081971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74540970 + 74540971.

It is an arithmetic number, because the mean of its divisors is an integer number (74540971).

Almost surely, 2^149081941 is an apocalyptic number.

It is an amenable number.

149081941 is a deficient number, since it is larger than the sum of its proper divisors (1).

149081941 is an equidigital number, since it uses as much as digits as its factorization.

149081941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 149081941 is about 12209.9115885415. The cubic root of 149081941 is about 530.2430841731.

The spelling of 149081941 in words is "one hundred forty-nine million, eighty-one thousand, nine hundred forty-one".