151049909 has 2 divisors, whose sum is σ = 151049910. Its totient is φ = 151049908.

The previous prime is 151049903. The next prime is 151049923. The reversal of 151049909 is 909940151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149989009 + 1060900 = 12247^2 + 1030^2 .

It is an emirp because it is prime and its reverse (909940151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151049909 - 2¹⁶ = 150984373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151049903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75524954 + 75524955.

It is an arithmetic number, because the mean of its divisors is an integer number (75524955).

Almost surely, 2^151049909 is an apocalyptic number.

It is an amenable number.

151049909 is a deficient number, since it is larger than the sum of its proper divisors (1).

151049909 is an equidigital number, since it uses as much as digits as its factorization.

151049909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 151049909 is about 12290.2363280777. The cubic root of 151049909 is about 532.5660643787.

The spelling of 151049909 in words is "one hundred fifty-one million, forty-nine thousand, nine hundred nine".