149429506 has 4 divisors (see below), whose sum is σ = 224144262. Its totient is φ = 74714752.

The previous prime is 149429503. The next prime is 149429513. The reversal of 149429506 is 605924941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605924941 = 479 ⋅1264979.

It can be written as a sum of positive squares in only one way, i.e., 130896481 + 18533025 = 11441^2 + 4305^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (149429503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37357375 + ... + 37357378.

Almost surely, 2^149429506 is an apocalyptic number.

149429506 is a deficient number, since it is larger than the sum of its proper divisors (74714756).

149429506 is an equidigital number, since it uses as much as digits as its factorization.

149429506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74714755.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 149429506 is about 12224.1362067019. The cubic root of 149429506 is about 530.6548284404.

The spelling of 149429506 in words is "one hundred forty-nine million, four hundred twenty-nine thousand, five hundred six".