1357142547 has 4 divisors (see below), whose sum is σ = 1809523400. Its totient is φ = 904761696.

The previous prime is 1357142513. The next prime is 1357142569. The reversal of 1357142547 is 7452417531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1357142547 - 2⁶ = 1357142483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357141547) 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 3 ways as a sum of consecutive naturals, for example, 226190422 + ... + 226190427.

It is an arithmetic number, because the mean of its divisors is an integer number (452380850).

Almost surely, 2^1357142547 is an apocalyptic number.

1357142547 is a deficient number, since it is larger than the sum of its proper divisors (452380853).

1357142547 is an equidigital number, since it uses as much as digits as its factorization.

1357142547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452380852.

The product of its digits is 117600, while the sum is 39.

The square root of 1357142547 is about 36839.4156712617. The cubic root of 1357142547 is about 1107.1551605558.

The spelling of 1357142547 in words is "one billion, three hundred fifty-seven million, one hundred forty-two thousand, five hundred forty-seven".