149151810 has 32 divisors (see below), whose sum is σ = 367641792. Its totient is φ = 38698560.

The previous prime is 149151799. The next prime is 149151839. The reversal of 149151810 is 18151941.

It is a happy number.

It is a super-2 number, since 2×149151810² = 44492524852552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66076 + ... + 68295.

It is an arithmetic number, because the mean of its divisors is an integer number (11488806).

Almost surely, 2^149151810 is an apocalyptic number.

149151810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149151810 is an abundant number, since it is smaller than the sum of its proper divisors (218489982).

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

149151810 is a wasteful number, since it uses less digits than its factorization.

149151810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134418.

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 149151810 is about 12212.7724125196. The cubic root of 149151810 is about 530.3259061159.

It can be divided in two parts, 1491 and 51810, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 149151810 in words is "one hundred forty-nine million, one hundred fifty-one thousand, eight hundred ten".