145851959 has 16 divisors (see below), whose sum is σ = 168855840. Its totient is φ = 124508160.

The previous prime is 145851943. The next prime is 145851983. The reversal of 145851959 is 959158541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145851959 - 2⁴ = 145851943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145851989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144047 + ... + 145055.

It is an arithmetic number, because the mean of its divisors is an integer number (10553490).

Almost surely, 2^145851959 is an apocalyptic number.

145851959 is a deficient number, since it is larger than the sum of its proper divisors (23003881).

145851959 is a wasteful number, since it uses less digits than its factorization.

145851959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its digits is 324000, while the sum is 47.

The square root of 145851959 is about 12076.9184397345. The cubic root of 145851959 is about 526.3857076905.

The spelling of 145851959 in words is "one hundred forty-five million, eight hundred fifty-one thousand, nine hundred fifty-nine".