149222811 has 4 divisors (see below), whose sum is σ = 198963752. Its totient is φ = 99481872.

The previous prime is 149222807. The next prime is 149222831. The reversal of 149222811 is 118222941.

It is a happy number.

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

It is not a de Polignac number, because 149222811 - 2² = 149222807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149222831) 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, 24870466 + ... + 24870471.

It is an arithmetic number, because the mean of its divisors is an integer number (49740938).

Almost surely, 2^149222811 is an apocalyptic number.

149222811 is a deficient number, since it is larger than the sum of its proper divisors (49740941).

149222811 is an equidigital number, since it uses as much as digits as its factorization.

149222811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49740940.

The product of its digits is 2304, while the sum is 30.

The square root of 149222811 is about 12215.6789004951. The cubic root of 149222811 is about 530.4100434264.

The spelling of 149222811 in words is "one hundred forty-nine million, two hundred twenty-two thousand, eight hundred eleven".