152443997 has 2 divisors, whose sum is σ = 152443998. Its totient is φ = 152443996.

The previous prime is 152443969. The next prime is 152444003. The reversal of 152443997 is 799344251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150651076 + 1792921 = 12274^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 152443997 - 2⁶ = 152443933 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 (152443297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76221998 + 76221999.

It is an arithmetic number, because the mean of its divisors is an integer number (76221999).

Almost surely, 2^152443997 is an apocalyptic number.

It is an amenable number.

152443997 is a deficient number, since it is larger than the sum of its proper divisors (1).

152443997 is an equidigital number, since it uses as much as digits as its factorization.

152443997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 152443997 is about 12346.8213318246. The cubic root of 152443997 is about 534.1994572087.

The spelling of 152443997 in words is "one hundred fifty-two million, four hundred forty-three thousand, nine hundred ninety-seven".