149243796 has 168 divisors, whose sum is σ = 438738944. Its totient is φ = 44089920.

The previous prime is 149243749. The next prime is 149243797. The reversal of 149243796 is 697342941.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149243797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1175085 + ... + 1175211.

Almost surely, 2^149243796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149243796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219369472).

149243796 is an abundant number, since it is smaller than the sum of its proper divisors (289495148).

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

149243796 is a wasteful number, since it uses less digits than its factorization.

149243796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 176 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 149243796 is about 12216.5378074150. The cubic root of 149243796 is about 530.4349058742.

The spelling of 149243796 in words is "one hundred forty-nine million, two hundred forty-three thousand, seven hundred ninety-six".