149181796 has 27 divisors (see below), whose sum is σ = 271137657. Its totient is φ = 71818320.

The previous prime is 149181779. The next prime is 149181797. The reversal of 149181796 is 697181941.

The square root of 149181796 is 12214.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 146168100 + 3013696 = 12090^2 + 1736^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149181797) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 757170 + ... + 757366.

Almost surely, 2^149181796 is an apocalyptic number.

149181796 is the 12214-th square number.

It is an amenable number.

149181796 is a deficient number, since it is larger than the sum of its proper divisors (121955861).

149181796 is an equidigital number, since it uses as much as digits as its factorization.

149181796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 230 counting only the distinct ones).

The product of its digits is 108864, while the sum is 46.

The cubic root of 149181796 is about 530.3614432577.

The spelling of 149181796 in words is "one hundred forty-nine million, one hundred eighty-one thousand, seven hundred ninety-six".