145975798 has 16 divisors (see below), whose sum is σ = 224421120. Its totient is φ = 71174376.

The previous prime is 145975793. The next prime is 145975801. The reversal of 145975798 is 897579541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145975793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78111 + ... + 79957.

It is an arithmetic number, because the mean of its divisors is an integer number (14026320).

Almost surely, 2^145975798 is an apocalyptic number.

145975798 is a deficient number, since it is larger than the sum of its proper divisors (78445322).

145975798 is a wasteful number, since it uses less digits than its factorization.

145975798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811.

The product of its digits is 3175200, while the sum is 55.

The square root of 145975798 is about 12082.0444462020. The cubic root of 145975798 is about 526.5346455570.

The spelling of 145975798 in words is "one hundred forty-five million, nine hundred seventy-five thousand, seven hundred ninety-eight".