149641658 has 8 divisors (see below), whose sum is σ = 224564052. Its totient is φ = 74786976.

The previous prime is 149641651. The next prime is 149641669. The reversal of 149641658 is 856146941.

It can be written as a sum of positive squares in 2 ways, for example, as 149499529 + 142129 = 12227^2 + 377^2 .

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

It is not an unprimeable number, because it can be changed into a prime (149641651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10985 + ... + 20492.

Almost surely, 2^149641658 is an apocalyptic number.

149641658 is a deficient number, since it is larger than the sum of its proper divisors (74922394).

149641658 is a wasteful number, since it uses less digits than its factorization.

149641658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33856.

The product of its digits is 207360, while the sum is 44.

The square root of 149641658 is about 12232.8107154488. The cubic root of 149641658 is about 530.9058414433.

The spelling of 149641658 in words is "one hundred forty-nine million, six hundred forty-one thousand, six hundred fifty-eight".