149663811 has 24 divisors (see below), whose sum is σ = 222469632. Its totient is φ = 89412400.

The previous prime is 149663791. The next prime is 149663821. The reversal of 149663811 is 118366941.

It is not a de Polignac number, because 149663811 - 2⁹ = 149663299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149663811.

It is not an unprimeable number, because it can be changed into a prime (149663821) 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 23 ways as a sum of consecutive naturals, for example, 22870 + ... + 28676.

It is an arithmetic number, because the mean of its divisors is an integer number (9269568).

Almost surely, 2^149663811 is an apocalyptic number.

149663811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149663811 is a deficient number, since it is larger than the sum of its proper divisors (72805821).

149663811 is a wasteful number, since it uses less digits than its factorization.

149663811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903 (or 5892 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 149663811 is about 12233.7161565895. The cubic root of 149663811 is about 530.9320386420.

The spelling of 149663811 in words is "one hundred forty-nine million, six hundred sixty-three thousand, eight hundred eleven".