149316858 has 80 divisors (see below), whose sum is σ = 355740000. Its totient is φ = 46679328.

The previous prime is 149316857. The next prime is 149316859. The reversal of 149316858 is 858613941.

It is an interprime number because it is at equal distance from previous prime (149316857) and next prime (149316859).

Its product of digits (207360) is a multiple of the sum of its prime divisors (512).

It is not an unprimeable number, because it can be changed into a prime (149316857) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 427668 + ... + 428016.

It is an arithmetic number, because the mean of its divisors is an integer number (4446750).

Almost surely, 2^149316858 is an apocalyptic number.

149316858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149316858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177870000).

149316858 is an abundant number, since it is smaller than the sum of its proper divisors (206423142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149316858 is a wasteful number, since it uses less digits than its factorization.

149316858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 512 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 149316858 is about 12219.5277322816. The cubic root of 149316858 is about 530.5214495336.

The spelling of 149316858 in words is "one hundred forty-nine million, three hundred sixteen thousand, eight hundred fifty-eight".