1425957743 has 4 divisors (see below), whose sum is σ = 1629666000. Its totient is φ = 1222249488.

The previous prime is 1425957721. The next prime is 1425957751. The reversal of 1425957743 is 3477595241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425957743 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 (1425917743) 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, 101854118 + ... + 101854131.

It is an arithmetic number, because the mean of its divisors is an integer number (407416500).

Almost surely, 2^1425957743 is an apocalyptic number.

1425957743 is a deficient number, since it is larger than the sum of its proper divisors (203708257).

1425957743 is an equidigital number, since it uses as much as digits as its factorization.

1425957743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203708256.

The product of its digits is 1058400, while the sum is 47.

The square root of 1425957743 is about 37761.8556615005. The cubic root of 1425957743 is about 1125.5606076380.

The spelling of 1425957743 in words is "one billion, four hundred twenty-five million, nine hundred fifty-seven thousand, seven hundred forty-three".