149497822 has 4 divisors (see below), whose sum is σ = 224246736. Its totient is φ = 74748910.

The previous prime is 149497819. The next prime is 149497867. The reversal of 149497822 is 228794941.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37374454 + ... + 37374457.

It is an arithmetic number, because the mean of its divisors is an integer number (56061684).

Almost surely, 2^149497822 is an apocalyptic number.

149497822 is a deficient number, since it is larger than the sum of its proper divisors (74748914).

149497822 is an equidigital number, since it uses as much as digits as its factorization.

149497822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74748913.

The product of its digits is 290304, while the sum is 46.

The square root of 149497822 is about 12226.9301952698. The cubic root of 149497822 is about 530.7356841631.

The spelling of 149497822 in words is "one hundred forty-nine million, four hundred ninety-seven thousand, eight hundred twenty-two".