149253805 has 8 divisors (see below), whose sum is σ = 179292672. Its totient is φ = 119277648.

The previous prime is 149253791. The next prime is 149253833. The reversal of 149253805 is 508352941.

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

It is a cyclic number.

It is not a de Polignac number, because 149253805 - 2⁵ = 149253773 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, 10269 + ... + 20098.

It is an arithmetic number, because the mean of its divisors is an integer number (22411584).

Almost surely, 2^149253805 is an apocalyptic number.

It is an amenable number.

149253805 is a deficient number, since it is larger than the sum of its proper divisors (30038867).

149253805 is an equidigital number, since it uses as much as digits as its factorization.

149253805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31355.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 149253805 is about 12216.9474501612. The cubic root of 149253805 is about 530.4467634398.

The spelling of 149253805 in words is "one hundred forty-nine million, two hundred fifty-three thousand, eight hundred five".