149806836 has 36 divisors (see below), whose sum is σ = 382436964. Its totient is φ = 49440000.

The previous prime is 149806829. The next prime is 149806859. The reversal of 149806836 is 638608941.

149806836 is digitally balanced in base 3, 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 2 ways, for example, as 136890000 + 12916836 = 11700^2 + 3594^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×149806836² = 44884176224661792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149806791 and 149806800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16965 + ... + 24236.

It is an arithmetic number, because the mean of its divisors is an integer number (10623249).

Almost surely, 2^149806836 is an apocalyptic number.

It is an amenable number.

149806836 is an abundant number, since it is smaller than the sum of its proper divisors (232630128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149806836 is a wasteful number, since it uses less digits than its factorization.

149806836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41312 (or 41307 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 149806836 is about 12239.5602862194. The cubic root of 149806836 is about 531.1011117528.

The spelling of 149806836 in words is "one hundred forty-nine million, eight hundred six thousand, eight hundred thirty-six".