149066775 has 144 divisors (see below), whose sum is σ = 324166752. Its totient is φ = 64512000.

The previous prime is 149066677. The next prime is 149066777. The reversal of 149066775 is 577660941.

It is a happy number.

It is not a de Polignac number, because 149066775 - 2¹⁰ = 149065751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 149066775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149066777) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1319119 + ... + 1319231.

It is an arithmetic number, because the mean of its divisors is an integer number (2251158).

Almost surely, 2^149066775 is an apocalyptic number.

149066775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149066775 is an abundant number, since it is smaller than the sum of its proper divisors (175099977).

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

149066775 is a wasteful number, since it uses less digits than its factorization.

149066775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 149066775 is about 12209.2905199278. The cubic root of 149066775 is about 530.2251031459.

It can be divided in two parts, 1490 and 66775, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 149066775 in words is "one hundred forty-nine million, sixty-six thousand, seven hundred seventy-five".