144536690 has 8 divisors (see below), whose sum is σ = 260166060. Its totient is φ = 57814672.

The previous prime is 144536687. The next prime is 144536701. The reversal of 144536690 is 96635441.

144536690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140683321 + 3853369 = 11861^2 + 1963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×144536690² = 41781709512312200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7226825 + ... + 7226844.

Almost surely, 2^144536690 is an apocalyptic number.

144536690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144536690 is a deficient number, since it is larger than the sum of its proper divisors (115629370).

144536690 is a wasteful number, since it uses less digits than its factorization.

144536690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14453676.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 144536690 is about 12022.3412861223. The cubic root of 144536690 is about 524.7986408453.

The spelling of 144536690 in words is "one hundred forty-four million, five hundred thirty-six thousand, six hundred ninety".