145985698 has 16 divisors (see below), whose sum is σ = 232084440. Its totient is φ = 68632576.

The previous prime is 145985687. The next prime is 145985699. The reversal of 145985698 is 896589541.

It can be written as a sum of positive squares in 4 ways, for example, as 145853929 + 131769 = 12077^2 + 363^2 .

It is a super-3 number, since 3×145985698³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (145985699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63090 + ... + 65362.

Almost surely, 2^145985698 is an apocalyptic number.

145985698 is a deficient number, since it is larger than the sum of its proper divisors (86098742).

145985698 is a wasteful number, since it uses less digits than its factorization.

145985698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181.

The product of its digits is 3110400, while the sum is 55.

The square root of 145985698 is about 12082.4541381294. The cubic root of 145985698 is about 526.5465483866.

The spelling of 145985698 in words is "one hundred forty-five million, nine hundred eighty-five thousand, six hundred ninety-eight".