1372745671 has 16 divisors (see below), whose sum is σ = 1510732800. Its totient is φ = 1236998880.

The previous prime is 1372745669. The next prime is 1372745683. The reversal of 1372745671 is 1765472731.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1372745671 - 2¹ = 1372745669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372745371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033810 + ... + 1035136.

It is an arithmetic number, because the mean of its divisors is an integer number (94420800).

Almost surely, 2^1372745671 is an apocalyptic number.

1372745671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1372745671 is a deficient number, since it is larger than the sum of its proper divisors (137987129).

1372745671 is a wasteful number, since it uses less digits than its factorization.

1372745671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094.

The product of its digits is 246960, while the sum is 43.

The square root of 1372745671 is about 37050.5826000078. The cubic root of 1372745671 is about 1111.3820058598.

The spelling of 1372745671 in words is "one billion, three hundred seventy-two million, seven hundred forty-five thousand, six hundred seventy-one".