2145731662 has 8 divisors (see below), whose sum is σ = 3220497000. Its totient is φ = 1072232664.

The previous prime is 2145731641. The next prime is 2145731677. The reversal of 2145731662 is 2661375412.

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, 312337 + ... + 319132.

It is an arithmetic number, because the mean of its divisors is an integer number (402562125).

Almost surely, 2^2145731662 is an apocalyptic number.

2145731662 is a deficient number, since it is larger than the sum of its proper divisors (1074765338).

2145731662 is a wasteful number, since it uses less digits than its factorization.

2145731662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633170.

The product of its digits is 60480, while the sum is 37.

The square root of 2145731662 is about 46322.0429385406. The cubic root of 2145731662 is about 1289.8082085718.

The spelling of 2145731662 in words is "two billion, one hundred forty-five million, seven hundred thirty-one thousand, six hundred sixty-two".