145225099 has 2 divisors, whose sum is σ = 145225100. Its totient is φ = 145225098.

The previous prime is 145225081. The next prime is 145225121. The reversal of 145225099 is 990522541.

It is a weak prime.

It is an emirp because it is prime and its reverse (990522541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145225099 - 2²⁵ = 111670667 is a prime.

It is not a weakly prime, because it can be changed into another prime (145225699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72612549 + 72612550.

It is an arithmetic number, because the mean of its divisors is an integer number (72612550).

Almost surely, 2^145225099 is an apocalyptic number.

145225099 is a deficient number, since it is larger than the sum of its proper divisors (1).

145225099 is an equidigital number, since it uses as much as digits as its factorization.

145225099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 145225099 is about 12050.9376813591. The cubic root of 145225099 is about 525.6305035612.

The spelling of 145225099 in words is "one hundred forty-five million, two hundred twenty-five thousand, ninety-nine".