2145471763 has 8 divisors (see below), whose sum is σ = 2239458048. Its totient is φ = 2051544264.

The previous prime is 2145471761. The next prime is 2145471781. The reversal of 2145471763 is 3671745412.

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

It is a cyclic number.

It is not a de Polignac number, because 2145471763 - 2¹ = 2145471761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145471761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70456 + ... + 96202.

It is an arithmetic number, because the mean of its divisors is an integer number (279932256).

Almost surely, 2^2145471763 is an apocalyptic number.

2145471763 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2145471763 is a deficient number, since it is larger than the sum of its proper divisors (93986285).

2145471763 is a wasteful number, since it uses less digits than its factorization.

2145471763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29393.

The product of its digits is 141120, while the sum is 40.

The square root of 2145471763 is about 46319.2375045186. The cubic root of 2145471763 is about 1289.7561310133.

The spelling of 2145471763 in words is "two billion, one hundred forty-five million, four hundred seventy-one thousand, seven hundred sixty-three".