149377901 has 2 divisors, whose sum is σ = 149377902. Its totient is φ = 149377900.

The previous prime is 149377849. The next prime is 149377919. The reversal of 149377901 is 109773941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146652100 + 2725801 = 12110^2 + 1651^2 .

It is an emirp because it is prime and its reverse (109773941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149377901 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149377201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74688950 + 74688951.

It is an arithmetic number, because the mean of its divisors is an integer number (74688951).

Almost surely, 2^149377901 is an apocalyptic number.

It is an amenable number.

149377901 is a deficient number, since it is larger than the sum of its proper divisors (1).

149377901 is an equidigital number, since it uses as much as digits as its factorization.

149377901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 149377901 is about 12222.0252413420. The cubic root of 149377901 is about 530.5937347601.

The spelling of 149377901 in words is "one hundred forty-nine million, three hundred seventy-seven thousand, nine hundred one".