1372734121 has 8 divisors (see below), whose sum is σ = 1518043104. Its totient is φ = 1230844320.

The previous prime is 1372734113. The next prime is 1372734199. The reversal of 1372734121 is 1214372731.

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 1372734121 - 2³ = 1372734113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1372734101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853951 + ... + 855556.

It is an arithmetic number, because the mean of its divisors is an integer number (189755388).

Almost surely, 2^1372734121 is an apocalyptic number.

1372734121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1372734121 is a deficient number, since it is larger than the sum of its proper divisors (145308983).

1372734121 is a wasteful number, since it uses less digits than its factorization.

1372734121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709591.

The product of its digits is 7056, while the sum is 31.

The square root of 1372734121 is about 37050.4267316856. The cubic root of 1372734121 is about 1111.3788888711.

The spelling of 1372734121 in words is "one billion, three hundred seventy-two million, seven hundred thirty-four thousand, one hundred twenty-one".