1372234645 has 8 divisors (see below), whose sum is σ = 1743545304. Its totient is φ = 1033211904.

The previous prime is 1372234621. The next prime is 1372234649. The reversal of 1372234645 is 5464322731.

It can be written as a sum of positive squares in 4 ways, for example, as 39765636 + 1332469009 = 6306^2 + 36503^2 .

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 1372234645 - 2⁵ = 1372234613 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 (1372234649) 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, 8071884 + ... + 8072053.

It is an arithmetic number, because the mean of its divisors is an integer number (217943163).

Almost surely, 2^1372234645 is an apocalyptic number.

It is an amenable number.

1372234645 is a deficient number, since it is larger than the sum of its proper divisors (371310659).

1372234645 is a wasteful number, since it uses less digits than its factorization.

1372234645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16143959.

The product of its digits is 120960, while the sum is 37.

The square root of 1372234645 is about 37043.6856292675. The cubic root of 1372234645 is about 1111.2440789777.

The spelling of 1372234645 in words is "one billion, three hundred seventy-two million, two hundred thirty-four thousand, six hundred forty-five".