151302213 has 12 divisors (see below), whose sum is σ = 224454828. Its totient is φ = 98141760.

The previous prime is 151302197. The next prime is 151302233. The reversal of 151302213 is 312203151.

151302213 is a `hidden beast` number, since 151 + 302 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128663649 + 22638564 = 11343^2 + 4758^2 .

It is not a de Polignac number, because 151302213 - 2⁴ = 151302197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151302233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226848 + ... + 227513.

It is an arithmetic number, because the mean of its divisors is an integer number (18704569).

Almost surely, 2^151302213 is an apocalyptic number.

It is an amenable number.

151302213 is a deficient number, since it is larger than the sum of its proper divisors (73152615).

151302213 is a wasteful number, since it uses less digits than its factorization.

151302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454404 (or 454401 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 151302213 is about 12300.4964533957. The cubic root of 151302213 is about 532.8624207398.

Adding to 151302213 its reverse (312203151), we get a palindrome (463505364).

The spelling of 151302213 in words is "one hundred fifty-one million, three hundred two thousand, two hundred thirteen".