30144154 has 4 divisors (see below), whose sum is σ = 45216234. Its totient is φ = 15072076.

The previous prime is 30144139. The next prime is 30144173. The reversal of 30144154 is 45144103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45144103 = 137 ⋅329519.

It can be written as a sum of positive squares in only one way, i.e., 27510025 + 2634129 = 5245^2 + 1623^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7536037 + ... + 7536040.

Almost surely, 2^30144154 is an apocalyptic number.

30144154 is a deficient number, since it is larger than the sum of its proper divisors (15072080).

30144154 is a wasteful number, since it uses less digits than its factorization.

30144154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15072079.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 30144154 is about 5490.3692043432. The cubic root of 30144154 is about 311.2201444458.

Adding to 30144154 its reverse (45144103), we get a palindrome (75288257).

The spelling of 30144154 in words is "thirty million, one hundred forty-four thousand, one hundred fifty-four".