153134434 has 4 divisors (see below), whose sum is σ = 229701654. Its totient is φ = 76567216.

The previous prime is 153134431. The next prime is 153134447. The reversal of 153134434 is 434431351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434431351 = 419 ⋅1036829.

It can be written as a sum of positive squares in only one way, i.e., 151216209 + 1918225 = 12297^2 + 1385^2 .

It is not an unprimeable number, because it can be changed into a prime (153134431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38283607 + ... + 38283610.

Almost surely, 2^153134434 is an apocalyptic number.

153134434 is a deficient number, since it is larger than the sum of its proper divisors (76567220).

153134434 is an equidigital number, since it uses as much as digits as its factorization.

153134434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76567219.

The product of its digits is 8640, while the sum is 28.

The square root of 153134434 is about 12374.7498560577. The cubic root of 153134434 is about 535.0047270086.

Adding to 153134434 its reverse (434431351), we get a palindrome (587565785).

The spelling of 153134434 in words is "one hundred fifty-three million, one hundred thirty-four thousand, four hundred thirty-four".