30243154 has 4 divisors (see below), whose sum is σ = 45364734. Its totient is φ = 15121576.

The previous prime is 30243151. The next prime is 30243163. The reversal of 30243154 is 45134203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23299929 + 6943225 = 4827^2 + 2635^2 .

It is not an unprimeable number, because it can be changed into a prime (30243151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7560787 + ... + 7560790.

Almost surely, 2^30243154 is an apocalyptic number.

30243154 is a deficient number, since it is larger than the sum of its proper divisors (15121580).

30243154 is a wasteful number, since it uses less digits than its factorization.

30243154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15121579.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30243154 is about 5499.3776011472. The cubic root of 30243154 is about 311.5604771673.

Adding to 30243154 its reverse (45134203), we get a palindrome (75377357).

The spelling of 30243154 in words is "thirty million, two hundred forty-three thousand, one hundred fifty-four".