151213 has 2 divisors, whose sum is σ = 151214. Its totient is φ = 151212.

The previous prime is 151201. The next prime is 151237. The reversal of 151213 is 312151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149769 + 1444 = 387^2 + 38^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151193 and 151202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75606 + 75607.

It is an arithmetic number, because the mean of its divisors is an integer number (75607).

2¹⁵¹²¹³ is an apocalyptic number.

It is an amenable number.

151213 is a deficient number, since it is larger than the sum of its proper divisors (1).

151213 is an equidigital number, since it uses as much as digits as its factorization.

151213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30, while the sum is 13.

The square root of 151213 is about 388.8611577414. The cubic root of 151213 is about 53.2757668799.

Adding to 151213 its reverse (312151), we get a palindrome (463364).

The spelling of 151213 in words is "one hundred fifty-one thousand, two hundred thirteen".