149530381 has 16 divisors (see below), whose sum is σ = 200769408. Its totient is φ = 107553600.

The previous prime is 149530379. The next prime is 149530387. The reversal of 149530381 is 183035941.

149530381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149530381 - 2¹ = 149530379 is a prime.

It is a super-2 number, since 2×149530381² = 44718669684010322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149530387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73690 + ... + 75691.

It is an arithmetic number, because the mean of its divisors is an integer number (12548088).

Almost surely, 2^149530381 is an apocalyptic number.

149530381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

149530381 is a deficient number, since it is larger than the sum of its proper divisors (51239027).

149530381 is a wasteful number, since it uses less digits than its factorization.

149530381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149412.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 149530381 is about 12228.2615690048. The cubic root of 149530381 is about 530.7742108533.

The spelling of 149530381 in words is "one hundred forty-nine million, five hundred thirty thousand, three hundred eighty-one".