645237062 has 8 divisors (see below), whose sum is σ = 973450656. Its totient is φ = 320753512.

The previous prime is 645237053. The next prime is 645237083. The reversal of 645237062 is 260732546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932078 + ... + 932769.

It is an arithmetic number, because the mean of its divisors is an integer number (121681332).

Almost surely, 2^645237062 is an apocalyptic number.

645237062 is a deficient number, since it is larger than the sum of its proper divisors (328213594).

645237062 is a wasteful number, since it uses less digits than its factorization.

645237062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865022.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 645237062 is about 25401.5169232076. The cubic root of 645237062 is about 864.1180992471.

The spelling of 645237062 in words is "six hundred forty-five million, two hundred thirty-seven thousand, sixty-two".