149894398 has 8 divisors (see below), whose sum is σ = 225328608. Its totient is φ = 74784864.

The previous prime is 149894383. The next prime is 149894399. The reversal of 149894398 is 893498941.

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 (149894399) 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, 80011 + ... + 81862.

It is an arithmetic number, because the mean of its divisors is an integer number (28166076).

Almost surely, 2^149894398 is an apocalyptic number.

149894398 is a deficient number, since it is larger than the sum of its proper divisors (75434210).

149894398 is a wasteful number, since it uses less digits than its factorization.

149894398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162338.

The product of its digits is 2239488, while the sum is 55.

The square root of 149894398 is about 12243.1367712690. The cubic root of 149894398 is about 531.2045676857.

The spelling of 149894398 in words is "one hundred forty-nine million, eight hundred ninety-four thousand, three hundred ninety-eight".