145064149 has 2 divisors, whose sum is σ = 145064150. Its totient is φ = 145064148.

The previous prime is 145064131. The next prime is 145064189. The reversal of 145064149 is 941460541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143832049 + 1232100 = 11993^2 + 1110^2 .

It is a cyclic number.

It is not a de Polignac number, because 145064149 - 2¹³ = 145055957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145064189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72532074 + 72532075.

It is an arithmetic number, because the mean of its divisors is an integer number (72532075).

Almost surely, 2^145064149 is an apocalyptic number.

It is an amenable number.

145064149 is a deficient number, since it is larger than the sum of its proper divisors (1).

145064149 is an equidigital number, since it uses as much as digits as its factorization.

145064149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 145064149 is about 12044.2579264976. The cubic root of 145064149 is about 525.4362499440.

The spelling of 145064149 in words is "one hundred forty-five million, sixty-four thousand, one hundred forty-nine".