1372740555 has 16 divisors (see below), whose sum is σ = 2229168384. Its totient is φ = 721200480.

The previous prime is 1372740541. The next prime is 1372740559. The reversal of 1372740555 is 5550472731.

It is a happy number.

It is not a de Polignac number, because 1372740555 - 2²¹ = 1370643403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1372740559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681951 + ... + 683960.

It is an arithmetic number, because the mean of its divisors is an integer number (139323024).

Almost surely, 2^1372740555 is an apocalyptic number.

1372740555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1372740555 is a deficient number, since it is larger than the sum of its proper divisors (856427829).

1372740555 is a wasteful number, since it uses less digits than its factorization.

1372740555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365986.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 1372740555 is about 37050.5135591938. The cubic root of 1372740555 is about 1111.3806252114.

It can be divided in two parts, 1 and 372740555, that added together give a triangular number (372740556 = T₂₇₃₀₃).

The spelling of 1372740555 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, five hundred fifty-five".