1457445743 has 4 divisors (see below), whose sum is σ = 1569556968. Its totient is φ = 1345334520.

The previous prime is 1457445739. The next prime is 1457445791. The reversal of 1457445743 is 3475447541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3475447541 = 31 ⋅112111211.

It is a cyclic number.

It is not a de Polignac number, because 1457445743 - 2² = 1457445739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1457445694 and 1457445703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457445793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56055593 + ... + 56055618.

It is an arithmetic number, because the mean of its divisors is an integer number (392389242).

Almost surely, 2^1457445743 is an apocalyptic number.

1457445743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1457445743 is a deficient number, since it is larger than the sum of its proper divisors (112111225).

1457445743 is a wasteful number, since it uses less digits than its factorization.

1457445743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112111224.

The product of its digits is 940800, while the sum is 44.

The square root of 1457445743 is about 38176.5077370888. The cubic root of 1457445743 is about 1133.7852394386.

The spelling of 1457445743 in words is "one billion, four hundred fifty-seven million, four hundred forty-five thousand, seven hundred forty-three".