145183898 has 8 divisors (see below), whose sum is σ = 217840980. Its totient is φ = 72570240.

The previous prime is 145183891. The next prime is 145183963. The reversal of 145183898 is 898381541.

It can be written as a sum of positive squares in 2 ways, for example, as 143688169 + 1495729 = 11987^2 + 1223^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145183891) 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 3 ways as a sum of consecutive naturals, for example, 533 + ... + 17048.

Almost surely, 2^145183898 is an apocalyptic number.

145183898 is a deficient number, since it is larger than the sum of its proper divisors (72657082).

145183898 is a wasteful number, since it uses less digits than its factorization.

145183898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21712.

The product of its digits is 276480, while the sum is 47.

The square root of 145183898 is about 12049.2281080574. The cubic root of 145183898 is about 525.5807909636.

The spelling of 145183898 in words is "one hundred forty-five million, one hundred eighty-three thousand, eight hundred ninety-eight".