145221167587 has 2 divisors, whose sum is σ = 145221167588. Its totient is φ = 145221167586.

The previous prime is 145221167579. The next prime is 145221167603. The reversal of 145221167587 is 785761122541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145221167587 - 2³ = 145221167579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145221167587.

It is not a weakly prime, because it can be changed into another prime (145221167527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72610583793 + 72610583794.

It is an arithmetic number, because the mean of its divisors is an integer number (72610583794).

Almost surely, 2^145221167587 is an apocalyptic number.

145221167587 is a deficient number, since it is larger than the sum of its proper divisors (1).

145221167587 is an equidigital number, since it uses as much as digits as its factorization.

145221167587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 49.

The spelling of 145221167587 in words is "one hundred forty-five billion, two hundred twenty-one million, one hundred sixty-seven thousand, five hundred eighty-seven".