1350126921 has 16 divisors (see below), whose sum is σ = 2114884800. Its totient is φ = 755315520.

The previous prime is 1350126919. The next prime is 1350126949. The reversal of 1350126921 is 1296210531.

It is not a de Polignac number, because 1350126921 - 2¹ = 1350126919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1350126821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573146 + ... + 1574003.

It is an arithmetic number, because the mean of its divisors is an integer number (132180300).

Almost surely, 2^1350126921 is an apocalyptic number.

1350126921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1350126921 is a deficient number, since it is larger than the sum of its proper divisors (764757879).

1350126921 is a wasteful number, since it uses less digits than its factorization.

1350126921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147176.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1350126921 is about 36744.0732771967. The cubic root of 1350126921 is about 1105.2440841335.

It can be divided in two parts, 1350 and 126921, that added together give a triangular number (128271 = T₅₀₆).

The spelling of 1350126921 in words is "one billion, three hundred fifty million, one hundred twenty-six thousand, nine hundred twenty-one".