145709611 has 2 divisors, whose sum is σ = 145709612. Its totient is φ = 145709610.

The previous prime is 145709581. The next prime is 145709639. The reversal of 145709611 is 116907541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145709611 - 2⁷ = 145709483 is a prime.

It is not a weakly prime, because it can be changed into another prime (145709411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72854805 + 72854806.

It is an arithmetic number, because the mean of its divisors is an integer number (72854806).

Almost surely, 2^145709611 is an apocalyptic number.

145709611 is a deficient number, since it is larger than the sum of its proper divisors (1).

145709611 is an equidigital number, since it uses as much as digits as its factorization.

145709611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 145709611 is about 12071.0236102826. The cubic root of 145709611 is about 526.2144053574.

The spelling of 145709611 in words is "one hundred forty-five million, seven hundred nine thousand, six hundred eleven".