434139154 has 4 divisors (see below), whose sum is σ = 651208734. Its totient is φ = 217069576.

The previous prime is 434139133. The next prime is 434139157. The reversal of 434139154 is 451931434.

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., 373532929 + 60606225 = 19327^2 + 7785^2 .

It is not an unprimeable number, because it can be changed into a prime (434139157) 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, 108534787 + ... + 108534790.

Almost surely, 2^434139154 is an apocalyptic number.

434139154 is a deficient number, since it is larger than the sum of its proper divisors (217069580).

434139154 is a wasteful number, since it uses less digits than its factorization.

434139154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217069579.

The product of its digits is 25920, while the sum is 34.

The square root of 434139154 is about 20836.0061912066. The cubic root of 434139154 is about 757.1983376965.

The spelling of 434139154 in words is "four hundred thirty-four million, one hundred thirty-nine thousand, one hundred fifty-four".