1352140421 has 8 divisors (see below), whose sum is σ = 1368187200. Its totient is φ = 1336112800.

The previous prime is 1352140417. The next prime is 1352140451. The reversal of 1352140421 is 1240412531.

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 1352140421 - 2² = 1352140417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352140411) 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, 177746 + ... + 185196.

It is an arithmetic number, because the mean of its divisors is an integer number (171023400).

Almost surely, 2^1352140421 is an apocalyptic number.

It is an amenable number.

1352140421 is a deficient number, since it is larger than the sum of its proper divisors (16046779).

1352140421 is an equidigital number, since it uses as much as digits as its factorization.

1352140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1352140421 is about 36771.4620459943. The cubic root of 1352140421 is about 1105.7932432689.

Adding to 1352140421 its reverse (1240412531), we get a palindrome (2592552952).

The spelling of 1352140421 in words is "one billion, three hundred fifty-two million, one hundred forty thousand, four hundred twenty-one".