145086109 has 48 divisors (see below), whose sum is σ = 192067200. Its totient is φ = 108573696.

The previous prime is 145086103. The next prime is 145086119. The reversal of 145086109 is 901680541.

It is not a de Polignac number, because 145086109 - 2⁷ = 145085981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145086103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1408552 + ... + 1408654.

It is an arithmetic number, because the mean of its divisors is an integer number (4001400).

Almost surely, 2^145086109 is an apocalyptic number.

145086109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145086109 is a deficient number, since it is larger than the sum of its proper divisors (46981091).

145086109 is a wasteful number, since it uses less digits than its factorization.

145086109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 145086109 is about 12045.1695297327. The cubic root of 145086109 is about 525.4627623477.

The spelling of 145086109 in words is "one hundred forty-five million, eighty-six thousand, one hundred nine".