213420148 has 12 divisors (see below), whose sum is σ = 375865252. Its totient is φ = 106030080.

The previous prime is 213420133. The next prime is 213420157. The reversal of 213420148 is 841024312.

It can be written as a sum of positive squares in 2 ways, for example, as 132204004 + 81216144 = 11498^2 + 9012^2 .

It is a nialpdrome in base 16.

It is a congruent number.

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, 169293 + ... + 170548.

Almost surely, 2^213420148 is an apocalyptic number.

It is an amenable number.

213420148 is a deficient number, since it is larger than the sum of its proper divisors (162445104).

213420148 is a wasteful number, since it uses less digits than its factorization.

213420148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340002 (or 340000 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 213420148 is about 14608.9064614707. The cubic root of 213420148 is about 597.6016743112.

The spelling of 213420148 in words is "two hundred thirteen million, four hundred twenty thousand, one hundred forty-eight".