152213491 has 2 divisors, whose sum is σ = 152213492. Its totient is φ = 152213490.

The previous prime is 152213459. The next prime is 152213497. The reversal of 152213491 is 194312251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 152213491 - 2⁵ = 152213459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152213497) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76106745 + 76106746.

It is an arithmetic number, because the mean of its divisors is an integer number (76106746).

Almost surely, 2^152213491 is an apocalyptic number.

152213491 is a deficient number, since it is larger than the sum of its proper divisors (1).

152213491 is an equidigital number, since it uses as much as digits as its factorization.

152213491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 152213491 is about 12337.4831712145. The cubic root of 152213491 is about 533.9300723893.

The spelling of 152213491 in words is "one hundred fifty-two million, two hundred thirteen thousand, four hundred ninety-one".