149424434 has 4 divisors (see below), whose sum is σ = 224136654. Its totient is φ = 74712216.

The previous prime is 149424427. The next prime is 149424439. The reversal of 149424434 is 434424941.

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., 148913209 + 511225 = 12203^2 + 715^2 .

It is a super-2 number, since 2×149424434² = 44655322952440712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149424394 and 149424403.

It is not an unprimeable number, because it can be changed into a prime (149424439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37356107 + ... + 37356110.

Almost surely, 2^149424434 is an apocalyptic number.

149424434 is a deficient number, since it is larger than the sum of its proper divisors (74712220).

149424434 is an equidigital number, since it uses as much as digits as its factorization.

149424434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74712219.

The product of its digits is 55296, while the sum is 35.

The square root of 149424434 is about 12223.9287465201. The cubic root of 149424434 is about 530.6488244684.

The spelling of 149424434 in words is "one hundred forty-nine million, four hundred twenty-four thousand, four hundred thirty-four".