210745130 has 16 divisors (see below), whose sum is σ = 391578624. Its totient is φ = 81578640.

The previous prime is 210745123. The next prime is 210745187. The reversal of 210745130 is 31547012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210745096 and 210745105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339602 + ... + 340221.

It is an arithmetic number, because the mean of its divisors is an integer number (24473664).

Almost surely, 2^210745130 is an apocalyptic number.

210745130 is a deficient number, since it is larger than the sum of its proper divisors (180833494).

210745130 is a wasteful number, since it uses less digits than its factorization.

210745130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679861.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 210745130 is about 14517.0634082792. The cubic root of 210745130 is about 595.0943804336.

The spelling of 210745130 in words is "two hundred ten million, seven hundred forty-five thousand, one hundred thirty".