149139510 has 64 divisors (see below), whose sum is σ = 391849920. Its totient is φ = 36103680.

The previous prime is 149139499. The next prime is 149139539. The reversal of 149139510 is 15931941.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20656 + ... + 26924.

It is an arithmetic number, because the mean of its divisors is an integer number (6122655).

Almost surely, 2^149139510 is an apocalyptic number.

149139510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149139510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195924960).

149139510 is an abundant number, since it is smaller than the sum of its proper divisors (242710410).

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

149139510 is a wasteful number, since it uses less digits than its factorization.

149139510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 149139510 is about 12212.2688309749. The cubic root of 149139510 is about 530.3113277076.

The spelling of 149139510 in words is "one hundred forty-nine million, one hundred thirty-nine thousand, five hundred ten".