149667841 has 4 divisors (see below), whose sum is σ = 151471152. Its totient is φ = 147864532.

The previous prime is 149667827. The next prime is 149667851. The reversal of 149667841 is 148766941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149667841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149667791 and 149667800.

It is not an unprimeable number, because it can be changed into a prime (149667851) 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, 901531 + ... + 901696.

It is an arithmetic number, because the mean of its divisors is an integer number (37867788).

It is a Proth number, since it is equal to 9135 ⋅ 2¹⁴ + 1 and 9135 < 2¹⁴.

Almost surely, 2^149667841 is an apocalyptic number.

It is an amenable number.

149667841 is a deficient number, since it is larger than the sum of its proper divisors (1803311).

149667841 is an equidigital number, since it uses as much as digits as its factorization.

149667841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803310.

The product of its digits is 290304, while the sum is 46.

The square root of 149667841 is about 12233.8808642229. The cubic root of 149667841 is about 530.9368040713.

The spelling of 149667841 in words is "one hundred forty-nine million, six hundred sixty-seven thousand, eight hundred forty-one".