149181504 has 28 divisors (see below), whose sum is σ = 394709904. Its totient is φ = 49727104.

The previous prime is 149181503. The next prime is 149181509. The reversal of 149181504 is 405181941.

It is a super-2 number, since 2×149181504² = 44510242271404032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149181503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388302 + ... + 388685.

Almost surely, 2^149181504 is an apocalyptic number.

It is an amenable number.

149181504 is an abundant number, since it is smaller than the sum of its proper divisors (245528400).

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

149181504 is an equidigital number, since it uses as much as digits as its factorization.

149181504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777002 (or 776992 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 149181504 is about 12213.9880464982. The cubic root of 149181504 is about 530.3610972243.

The spelling of 149181504 in words is "one hundred forty-nine million, one hundred eighty-one thousand, five hundred four".