149499405 has 32 divisors (see below), whose sum is σ = 289941120. Its totient is φ = 72483840.

The previous prime is 149499403. The next prime is 149499409. The reversal of 149499405 is 504994941.

It is not a de Polignac number, because 149499405 - 2¹ = 149499403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149499403) 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 31 ways as a sum of consecutive naturals, for example, 48852 + ... + 51821.

It is an arithmetic number, because the mean of its divisors is an integer number (9060660).

Almost surely, 2^149499405 is an apocalyptic number.

149499405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149499405 is a deficient number, since it is larger than the sum of its proper divisors (140441715).

149499405 is a wasteful number, since it uses less digits than its factorization.

149499405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100698 (or 100692 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 149499405 is about 12226.9949292539. The cubic root of 149499405 is about 530.7375574381.

The spelling of 149499405 in words is "one hundred forty-nine million, four hundred ninety-nine thousand, four hundred five".