149349278 has 8 divisors (see below), whose sum is σ = 241256568. Its totient is φ = 68930424.

The previous prime is 149349271. The next prime is 149349307. The reversal of 149349278 is 872943941.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149349271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872076 + ... + 2872127.

It is an arithmetic number, because the mean of its divisors is an integer number (30157071).

Almost surely, 2^149349278 is an apocalyptic number.

149349278 is a deficient number, since it is larger than the sum of its proper divisors (91907290).

149349278 is a wasteful number, since it uses less digits than its factorization.

149349278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744218.

The product of its digits is 435456, while the sum is 47.

The square root of 149349278 is about 12220.8542254623. The cubic root of 149349278 is about 530.5598427442.

The spelling of 149349278 in words is "one hundred forty-nine million, three hundred forty-nine thousand, two hundred seventy-eight".