145075161 has 32 divisors (see below), whose sum is σ = 255356928. Its totient is φ = 70928640.

The previous prime is 145075157. The next prime is 145075169. The reversal of 145075161 is 161570541.

It is not a de Polignac number, because 145075161 - 2² = 145075157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145075169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14545 + ... + 22398.

It is an arithmetic number, because the mean of its divisors is an integer number (7979904).

Almost surely, 2^145075161 is an apocalyptic number.

145075161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145075161 is a deficient number, since it is larger than the sum of its proper divisors (110281767).

145075161 is a wasteful number, since it uses less digits than its factorization.

145075161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36981.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 145075161 is about 12044.7150651230. The cubic root of 145075161 is about 525.4495451140.

The spelling of 145075161 in words is "one hundred forty-five million, seventy-five thousand, one hundred sixty-one".