152019997 has 2 divisors, whose sum is σ = 152019998. Its totient is φ = 152019996.

The previous prime is 152019979. The next prime is 152020003. The reversal of 152019997 is 799910251.

Together with previous prime (152019979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115369081 + 36650916 = 10741^2 + 6054^2 .

It is a cyclic number.

It is not a de Polignac number, because 152019997 - 2¹⁵ = 151987229 is a prime.

It is a super-2 number, since 2×152019997² = 46220158975760018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152089997) 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, 76009998 + 76009999.

It is an arithmetic number, because the mean of its divisors is an integer number (76009999).

Almost surely, 2^152019997 is an apocalyptic number.

It is an amenable number.

152019997 is a deficient number, since it is larger than the sum of its proper divisors (1).

152019997 is an equidigital number, since it uses as much as digits as its factorization.

152019997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 152019997 is about 12329.6389647061. The cubic root of 152019997 is about 533.7037322391.

The spelling of 152019997 in words is "one hundred fifty-two million, nineteen thousand, nine hundred ninety-seven".