149915450 has 24 divisors (see below), whose sum is σ = 279336288. Its totient is φ = 59860080.

The previous prime is 149915443. The next prime is 149915459. The reversal of 149915450 is 54519941.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149915459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29819 + ... + 34481.

It is an arithmetic number, because the mean of its divisors is an integer number (11639012).

Almost surely, 2^149915450 is an apocalyptic number.

149915450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149915450 is a deficient number, since it is larger than the sum of its proper divisors (129420838).

149915450 is a wasteful number, since it uses less digits than its factorization.

149915450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318 (or 5313 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 149915450 is about 12243.9964880753. The cubic root of 149915450 is about 531.2294349594.

The spelling of 149915450 in words is "one hundred forty-nine million, nine hundred fifteen thousand, four hundred fifty".