1457957143 has 4 divisors (see below), whose sum is σ = 1521346608. Its totient is φ = 1394567680.

The previous prime is 1457957131. The next prime is 1457957147. The reversal of 1457957143 is 3417597541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3417597541 = 38873 ⋅87917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457957143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1457957093 and 1457957102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457957147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31694698 + ... + 31694743.

It is an arithmetic number, because the mean of its divisors is an integer number (380336652).

Almost surely, 2^1457957143 is an apocalyptic number.

1457957143 is a deficient number, since it is larger than the sum of its proper divisors (63389465).

1457957143 is an equidigital number, since it uses as much as digits as its factorization.

1457957143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63389464.

The product of its digits is 529200, while the sum is 46.

The square root of 1457957143 is about 38183.2049859621. The cubic root of 1457957143 is about 1133.9178344187.

The spelling of 1457957143 in words is "one billion, four hundred fifty-seven million, nine hundred fifty-seven thousand, one hundred forty-three".