152143909 has 2 divisors, whose sum is σ = 152143910. Its totient is φ = 152143908.

The previous prime is 152143891. The next prime is 152143951. The reversal of 152143909 is 909341251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124947684 + 27196225 = 11178^2 + 5215^2 .

It is a cyclic number.

It is not a de Polignac number, because 152143909 - 2¹⁹ = 151619621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152143109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76071954 + 76071955.

It is an arithmetic number, because the mean of its divisors is an integer number (76071955).

Almost surely, 2^152143909 is an apocalyptic number.

It is an amenable number.

152143909 is a deficient number, since it is larger than the sum of its proper divisors (1).

152143909 is an equidigital number, since it uses as much as digits as its factorization.

152143909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 152143909 is about 12334.6629058114. The cubic root of 152143909 is about 533.8487007478.

The spelling of 152143909 in words is "one hundred fifty-two million, one hundred forty-three thousand, nine hundred nine".