149709845 has 8 divisors (see below), whose sum is σ = 182697120. Its totient is φ = 117737680.

The previous prime is 149709841. The next prime is 149709851. The reversal of 149709845 is 548907941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149709845 - 2² = 149709841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149709845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149709841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253451 + ... + 254040.

It is an arithmetic number, because the mean of its divisors is an integer number (22837140).

Almost surely, 2^149709845 is an apocalyptic number.

It is an amenable number.

149709845 is a deficient number, since it is larger than the sum of its proper divisors (32987275).

149709845 is an equidigital number, since it uses as much as digits as its factorization.

149709845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507555.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 149709845 is about 12235.5974516981. The cubic root of 149709845 is about 530.9864682330.

The spelling of 149709845 in words is "one hundred forty-nine million, seven hundred nine thousand, eight hundred forty-five".