149553685 has 8 divisors (see below), whose sum is σ = 180113976. Its totient is φ = 119209920.

The previous prime is 149553673. The next prime is 149553737. The reversal of 149553685 is 586355941.

It can be written as a sum of positive squares in 4 ways, for example, as 5769604 + 143784081 = 2402^2 + 11991^2 .

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

It is not a de Polignac number, because 149553685 - 2⁵ = 149553653 is a prime.

It is a Duffinian number.

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, 52606 + ... + 55375.

It is an arithmetic number, because the mean of its divisors is an integer number (22514247).

Almost surely, 2^149553685 is an apocalyptic number.

It is an amenable number.

149553685 is a deficient number, since it is larger than the sum of its proper divisors (30560291).

149553685 is a wasteful number, since it uses less digits than its factorization.

149553685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108263.

The product of its digits is 648000, while the sum is 46.

The square root of 149553685 is about 12229.2144064940. The cubic root of 149553685 is about 530.8017827746.

The spelling of 149553685 in words is "one hundred forty-nine million, five hundred fifty-three thousand, six hundred eighty-five".