149491745340 has 96 divisors (see below), whose sum is σ = 485111337984. Its totient is φ = 33688273920.

The previous prime is 149491745281. The next prime is 149491745341. The reversal of 149491745340 is 43547194941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149491745341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2476749 + ... + 2536388.

It is an arithmetic number, because the mean of its divisors is an integer number (5053243104).

Almost surely, 2^149491745340 is an apocalyptic number.

149491745340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149491745340 is an abundant number, since it is smaller than the sum of its proper divisors (335619592644).

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

149491745340 is a wasteful number, since it uses less digits than its factorization.

149491745340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013227 (or 5013225 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 149491745340 in words is "one hundred forty-nine billion, four hundred ninety-one million, seven hundred forty-five thousand, three hundred forty".