1372745136 has 160 divisors (see below), whose sum is σ = 4310438400. Its totient is φ = 367718400.

The previous prime is 1372745119. The next prime is 1372745137. The reversal of 1372745136 is 6315472731.

It is a junction number, because it is equal to n+sod(n) for n = 1372745094 and 1372745103.

It is not an unprimeable number, because it can be changed into a prime (1372745137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643720 + ... + 645848.

It is an arithmetic number, because the mean of its divisors is an integer number (26940240).

Almost surely, 2^1372745136 is an apocalyptic number.

1372745136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372745136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155219200).

1372745136 is an abundant number, since it is smaller than the sum of its proper divisors (2937693264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1372745136 is a wasteful number, since it uses less digits than its factorization.

1372745136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2261 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 1372745136 is about 37050.5753801476. The cubic root of 1372745136 is about 1111.3818614802.

The spelling of 1372745136 in words is "one billion, three hundred seventy-two million, seven hundred forty-five thousand, one hundred thirty-six".