145958913 has 12 divisors (see below), whose sum is σ = 211051620. Its totient is φ = 97203456.

The previous prime is 145958867. The next prime is 145958921. The reversal of 145958913 is 319859541.

145958913 is a `hidden beast` number, since 1 + 4 + 59 + 589 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35141184 + 110817729 = 5928^2 + 10527^2 .

It is not a de Polignac number, because 145958913 - 2¹² = 145954817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145958983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1045 + ... + 17117.

It is an arithmetic number, because the mean of its divisors is an integer number (17587635).

Almost surely, 2^145958913 is an apocalyptic number.

It is an amenable number.

145958913 is a deficient number, since it is larger than the sum of its proper divisors (65092707).

145958913 is a wasteful number, since it uses less digits than its factorization.

145958913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17088 (or 17085 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 145958913 is about 12081.3456618044. The cubic root of 145958913 is about 526.5143433781.

The spelling of 145958913 in words is "one hundred forty-five million, nine hundred fifty-eight thousand, nine hundred thirteen".