149791829 has 6 divisors (see below), whose sum is σ = 164647350. Its totient is φ = 136174280.

The previous prime is 149791823. The next prime is 149791871. The reversal of 149791829 is 928197941.

149791829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 132135025 + 17656804 = 11495^2 + 4202^2 .

It is not a de Polignac number, because 149791829 - 2⁴ = 149791813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149791823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618854 + ... + 619095.

It is an arithmetic number, because the mean of its divisors is an integer number (27441225).

Almost surely, 2^149791829 is an apocalyptic number.

It is an amenable number.

149791829 is a deficient number, since it is larger than the sum of its proper divisors (14855521).

149791829 is a wasteful number, since it uses less digits than its factorization.

149791829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237971 (or 1237960 counting only the distinct ones).

The product of its digits is 326592, while the sum is 50.

The square root of 149791829 is about 12238.9472177961. The cubic root of 149791829 is about 531.0833766909.

The spelling of 149791829 in words is "one hundred forty-nine million, seven hundred ninety-one thousand, eight hundred twenty-nine".