149878954 has 8 divisors (see below), whose sum is σ = 236651040. Its totient is φ = 70995276.

The previous prime is 149878921. The next prime is 149878991. The reversal of 149878954 is 459878941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 149878895 and 149878904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972054 + ... + 1972129.

It is an arithmetic number, because the mean of its divisors is an integer number (29581380).

Almost surely, 2^149878954 is an apocalyptic number.

149878954 is a deficient number, since it is larger than the sum of its proper divisors (86772086).

149878954 is a wasteful number, since it uses less digits than its factorization.

149878954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944204.

The product of its digits is 2903040, while the sum is 55.

The square root of 149878954 is about 12242.5060343052. The cubic root of 149878954 is about 531.1863232745.

The spelling of 149878954 in words is "one hundred forty-nine million, eight hundred seventy-eight thousand, nine hundred fifty-four".