1372242737 has 8 divisors (see below), whose sum is σ = 1453444200. Its totient is φ = 1291094784.

The previous prime is 1372242701. The next prime is 1372242787. The reversal of 1372242737 is 7372422731.

It can be written as a sum of positive squares in 4 ways, for example, as 46117681 + 1326125056 = 6791^2 + 36416^2 .

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

It is not a de Polignac number, because 1372242737 - 2⁸ = 1372242481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1372242737.

It is not an unprimeable number, because it can be changed into a prime (1372242787) 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, 47339 + ... + 70607.

It is an arithmetic number, because the mean of its divisors is an integer number (181680525).

Almost surely, 2^1372242737 is an apocalyptic number.

1372242737 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1372242737 is a deficient number, since it is larger than the sum of its proper divisors (81201463).

1372242737 is a wasteful number, since it uses less digits than its factorization.

1372242737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26755.

The product of its digits is 98784, while the sum is 38.

The square root of 1372242737 is about 37043.7948514998. The cubic root of 1372242737 is about 1111.2462632906.

The spelling of 1372242737 in words is "one billion, three hundred seventy-two million, two hundred forty-two thousand, seven hundred thirty-seven".