149715209268 has 36 divisors (see below), whose sum is σ = 378459008928. Its totient is φ = 49903457040.

The previous prime is 149715209261. The next prime is 149715209291. The reversal of 149715209268 is 862902517941.

It is a happy number.

149715209268 is a `hidden beast` number, since 1 + 4 + 97 + 1 + 520 + 9 + 26 + 8 = 666.

149715209268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×149715209268² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149715209261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1696155 + ... + 1782237.

It is an arithmetic number, because the mean of its divisors is an integer number (10512750248).

Almost surely, 2^149715209268 is an apocalyptic number.

149715209268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149715209268 is an abundant number, since it is smaller than the sum of its proper divisors (228743799660).

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

149715209268 is a wasteful number, since it uses less digits than its factorization.

149715209268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134404 (or 134399 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 149715209268 in words is "one hundred forty-nine billion, seven hundred fifteen million, two hundred nine thousand, two hundred sixty-eight".