149249605 has 8 divisors (see below), whose sum is σ = 179883000. Its totient is φ = 118877376.

The previous prime is 149249587. The next prime is 149249621. The reversal of 149249605 is 506942941.

149249605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24860196 + 124389409 = 4986^2 + 11153^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149249605 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64030 + ... + 66319.

It is an arithmetic number, because the mean of its divisors is an integer number (22485375).

Almost surely, 2^149249605 is an apocalyptic number.

It is an amenable number.

149249605 is a deficient number, since it is larger than the sum of its proper divisors (30633395).

149249605 is a wasteful number, since it uses less digits than its factorization.

149249605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130583.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 149249605 is about 12216.7755565861. The cubic root of 149249605 is about 530.4417878049.

The spelling of 149249605 in words is "one hundred forty-nine million, two hundred forty-nine thousand, six hundred five".