149400379 has 2 divisors, whose sum is σ = 149400380. Its totient is φ = 149400378.

The previous prime is 149400359. The next prime is 149400389. The reversal of 149400379 is 973004941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149400379 - 2⁵ = 149400347 is a prime.

It is not a weakly prime, because it can be changed into another prime (149400359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74700189 + 74700190.

It is an arithmetic number, because the mean of its divisors is an integer number (74700190).

Almost surely, 2^149400379 is an apocalyptic number.

149400379 is a deficient number, since it is larger than the sum of its proper divisors (1).

149400379 is an equidigital number, since it uses as much as digits as its factorization.

149400379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 149400379 is about 12222.9447761168. The cubic root of 149400379 is about 530.6203475494.

The spelling of 149400379 in words is "one hundred forty-nine million, four hundred thousand, three hundred seventy-nine".