149198054 has 4 divisors (see below), whose sum is σ = 223797084. Its totient is φ = 74599026.

The previous prime is 149198053. The next prime is 149198083. The reversal of 149198054 is 450891941.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149198053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37299512 + ... + 37299515.

It is an arithmetic number, because the mean of its divisors is an integer number (55949271).

Almost surely, 2^149198054 is an apocalyptic number.

149198054 is a deficient number, since it is larger than the sum of its proper divisors (74599030).

149198054 is an equidigital number, since it uses as much as digits as its factorization.

149198054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74599029.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 149198054 is about 12214.6655296001. The cubic root of 149198054 is about 530.3807090201.

The spelling of 149198054 in words is "one hundred forty-nine million, one hundred ninety-eight thousand, fifty-four".