152145521813 has 2 divisors, whose sum is σ = 152145521814. Its totient is φ = 152145521812.

The previous prime is 152145521771. The next prime is 152145521831. The reversal of 152145521813 is 318125541251.

It is a happy number.

Together with next prime (152145521831) 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., 149619655249 + 2525866564 = 386807^2 + 50258^2 .

It is a cyclic number.

It is not a de Polignac number, because 152145521813 - 2¹² = 152145517717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152145524813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76072760906 + 76072760907.

It is an arithmetic number, because the mean of its divisors is an integer number (76072760907).

Almost surely, 2^152145521813 is an apocalyptic number.

It is an amenable number.

152145521813 is a deficient number, since it is larger than the sum of its proper divisors (1).

152145521813 is an equidigital number, since it uses as much as digits as its factorization.

152145521813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 38.

The spelling of 152145521813 in words is "one hundred fifty-two billion, one hundred forty-five million, five hundred twenty-one thousand, eight hundred thirteen".