149506601 has 4 divisors (see below), whose sum is σ = 156006912. Its totient is φ = 143006292.

The previous prime is 149506597. The next prime is 149506607. The reversal of 149506601 is 106605941.

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 not a de Polignac number, because 149506601 - 2² = 149506597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149506607) 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, 3250121 + ... + 3250166.

It is an arithmetic number, because the mean of its divisors is an integer number (39001728).

Almost surely, 2^149506601 is an apocalyptic number.

It is an amenable number.

149506601 is a deficient number, since it is larger than the sum of its proper divisors (6500311).

149506601 is an equidigital number, since it uses as much as digits as its factorization.

149506601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500310.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 149506601 is about 12227.2891926216. The cubic root of 149506601 is about 530.7460728036.

The spelling of 149506601 in words is "one hundred forty-nine million, five hundred six thousand, six hundred one".