213187041 has 12 divisors (see below), whose sum is σ = 313747668. Its totient is φ = 139442784.

The previous prime is 213187027. The next prime is 213187057. The reversal of 213187041 is 140781312.

It can be written as a sum of positive squares in 2 ways, for example, as 55935441 + 157251600 = 7479^2 + 12540^2 .

It is a de Polignac number, because none of the positive numbers 2^k-213187041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213186996 and 213187014.

It is not an unprimeable number, because it can be changed into a prime (213187241) 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, 222990 + ... + 223943.

It is an arithmetic number, because the mean of its divisors is an integer number (26145639).

Almost surely, 2^213187041 is an apocalyptic number.

It is an amenable number.

213187041 is a deficient number, since it is larger than the sum of its proper divisors (100560627).

213187041 is a wasteful number, since it uses less digits than its factorization.

213187041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446992 (or 446989 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 213187041 is about 14600.9260322762. The cubic root of 213187041 is about 597.3840193178.

The spelling of 213187041 in words is "two hundred thirteen million, one hundred eighty-seven thousand, forty-one".