145247164 has 6 divisors (see below), whose sum is σ = 254182544. Its totient is φ = 72623580.

The previous prime is 145247119. The next prime is 145247197. The reversal of 145247164 is 461742541.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18155892 + ... + 18155899.

Almost surely, 2^145247164 is an apocalyptic number.

It is an amenable number.

145247164 is a deficient number, since it is larger than the sum of its proper divisors (108935380).

145247164 is a wasteful number, since it uses less digits than its factorization.

145247164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36311795 (or 36311793 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 145247164 is about 12051.8531355141. The cubic root of 145247164 is about 525.6571230409.

The spelling of 145247164 in words is "one hundred forty-five million, two hundred forty-seven thousand, one hundred sixty-four".