152420434 has 4 divisors (see below), whose sum is σ = 228630654. Its totient is φ = 76210216.

The previous prime is 152420417. The next prime is 152420441. The reversal of 152420434 is 434024251.

It is a happy number.

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., 130302225 + 22118209 = 11415^2 + 4703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 152420399 and 152420408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38105107 + ... + 38105110.

Almost surely, 2^152420434 is an apocalyptic number.

152420434 is a deficient number, since it is larger than the sum of its proper divisors (76210220).

152420434 is an equidigital number, since it uses as much as digits as its factorization.

152420434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76210219.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 152420434 is about 12345.8670817404. The cubic root of 152420434 is about 534.1719323676.

Adding to 152420434 its reverse (434024251), we get a palindrome (586444685).

The spelling of 152420434 in words is "one hundred fifty-two million, four hundred twenty thousand, four hundred thirty-four".