149787 has 24 divisors (see below), whose sum is σ = 252720. Its totient is φ = 84480.

The previous prime is 149771. The next prime is 149791. The reversal of 149787 is 787941.

It is not a de Polignac number, because 149787 - 2⁴ = 149771 is a prime.

It is a super-2 number, since 2×149787² = 44872290738, which contains 22 as substring.

It is a nialpdrome in base 8.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (149717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1639 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (10530).

2¹⁴⁹⁷⁸⁷ is an apocalyptic number.

149787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

149787 is a deficient number, since it is larger than the sum of its proper divisors (102933).

149787 is a wasteful number, since it uses less digits than its factorization.

149787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 120 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 149787 is about 387.0232551152. The cubic root of 149787 is about 53.1077669595.

It can be divided in two parts, 14 and 9787, that added together give a square (9801 = 99²).

The spelling of 149787 in words is "one hundred forty-nine thousand, seven hundred eighty-seven".