30040154 has 4 divisors (see below), whose sum is σ = 45060234. Its totient is φ = 15020076.

The previous prime is 30040151. The next prime is 30040169. The reversal of 30040154 is 45104003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45104003 = 7 ⋅6443429.

It can be written as a sum of positive squares in only one way, i.e., 25775929 + 4264225 = 5077^2 + 2065^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30040151) by changing a digit.

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, 7510037 + ... + 7510040.

Almost surely, 2^30040154 is an apocalyptic number.

30040154 is a deficient number, since it is larger than the sum of its proper divisors (15020080).

30040154 is a wasteful number, since it uses less digits than its factorization.

30040154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020079.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30040154 is about 5480.8898912494. The cubic root of 30040154 is about 310.8618196949.

Adding to 30040154 its reverse (45104003), we get a palindrome (75144157).

The spelling of 30040154 in words is "thirty million, forty thousand, one hundred fifty-four".