212703451 has 4 divisors (see below), whose sum is σ = 212875000. Its totient is φ = 212531904.

The previous prime is 212703389. The next prime is 212703571. The reversal of 212703451 is 154307212.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212703451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212701451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83901 + ... + 86398.

It is an arithmetic number, because the mean of its divisors is an integer number (53218750).

Almost surely, 2^212703451 is an apocalyptic number.

212703451 is a deficient number, since it is larger than the sum of its proper divisors (171549).

212703451 is a wasteful number, since it uses less digits than its factorization.

212703451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171548.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 212703451 is about 14584.3563793539. The cubic root of 212703451 is about 596.9319786290.

The spelling of 212703451 in words is "two hundred twelve million, seven hundred three thousand, four hundred fifty-one".