145394896 has 10 divisors (see below), whose sum is σ = 281702642. Its totient is φ = 72697440.

The previous prime is 145394869. The next prime is 145394927. The reversal of 145394896 is 698493541.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107744400 + 37650496 = 10380^2 + 6136^2 .

It is a super-2 number, since 2×145394896² = 42279351565701632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4543575 + ... + 4543606.

Almost surely, 2^145394896 is an apocalyptic number.

145394896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145394896 is a deficient number, since it is larger than the sum of its proper divisors (136307746).

145394896 is an equidigital number, since it uses as much as digits as its factorization.

145394896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087189 (or 9087183 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 145394896 is about 12057.9805937810. The cubic root of 145394896 is about 525.8352792782.

The spelling of 145394896 in words is "one hundred forty-five million, three hundred ninety-four thousand, eight hundred ninety-six".