1342540191 has 8 divisors (see below), whose sum is σ = 1823828400. Its totient is φ = 878139392.

The previous prime is 1342540187. The next prime is 1342540217. The reversal of 1342540191 is 1910452431.

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 1342540191 - 2² = 1342540187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342540091) 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, 4221666 + ... + 4221983.

It is an arithmetic number, because the mean of its divisors is an integer number (227978550).

Almost surely, 2^1342540191 is an apocalyptic number.

1342540191 is a deficient number, since it is larger than the sum of its proper divisors (481288209).

1342540191 is an equidigital number, since it uses as much as digits as its factorization.

1342540191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443705.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1342540191 is about 36640.6903728628. The cubic root of 1342540191 is about 1103.1699720005.

The spelling of 1342540191 in words is "one billion, three hundred forty-two million, five hundred forty thousand, one hundred ninety-one".