145040164 has 6 divisors (see below), whose sum is σ = 253820294. Its totient is φ = 72520080.

The previous prime is 145040153. The next prime is 145040183. The reversal of 145040164 is 461040541.

It can be written as a sum of positive squares in only one way, i.e., 143808064 + 1232100 = 11992^2 + 1110^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18130017 + ... + 18130024.

Almost surely, 2^145040164 is an apocalyptic number.

It is an amenable number.

145040164 is a deficient number, since it is larger than the sum of its proper divisors (108780130).

145040164 is a wasteful number, since it uses less digits than its factorization.

145040164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36260045 (or 36260043 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 145040164 is about 12043.2621826480. The cubic root of 145040164 is about 525.4072896916.

It can be divided in two parts, 1450 and 40164, that added together give a palindrome (41614).

The spelling of 145040164 in words is "one hundred forty-five million, forty thousand, one hundred sixty-four".