149046478 has 16 divisors (see below), whose sum is σ = 256417920. Its totient is φ = 63649656.

The previous prime is 149046473. The next prime is 149046479. The reversal of 149046478 is 874640941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149046473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14848 + ... + 22771.

It is an arithmetic number, because the mean of its divisors is an integer number (16026120).

Almost surely, 2^149046478 is an apocalyptic number.

149046478 is a deficient number, since it is larger than the sum of its proper divisors (107371442).

149046478 is a wasteful number, since it uses less digits than its factorization.

149046478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37911.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 149046478 is about 12208.4592803515. The cubic root of 149046478 is about 530.2010368230.

The spelling of 149046478 in words is "one hundred forty-nine million, forty-six thousand, four hundred seventy-eight".