149285869 has 8 divisors (see below), whose sum is σ = 157839840. Its totient is φ = 140801616.

The previous prime is 149285867. The next prime is 149285887. The reversal of 149285869 is 968582941.

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 149285869 - 2¹ = 149285867 is a prime.

It is a super-2 number, since 2×149285869² = 44572541366170322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149285867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12994 + ... + 21619.

It is an arithmetic number, because the mean of its divisors is an integer number (19729980).

Almost surely, 2^149285869 is an apocalyptic number.

149285869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

149285869 is a deficient number, since it is larger than the sum of its proper divisors (8553971).

149285869 is a wasteful number, since it uses less digits than its factorization.

149285869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34859.

The product of its digits is 1244160, while the sum is 52.

The square root of 149285869 is about 12218.2596551227. The cubic root of 149285869 is about 530.4847457818.

The spelling of 149285869 in words is "one hundred forty-nine million, two hundred eighty-five thousand, eight hundred sixty-nine".