1457207123 has 4 divisors (see below), whose sum is σ = 1466147208. Its totient is φ = 1448267040.

The previous prime is 1457207119. The next prime is 1457207131. The reversal of 1457207123 is 3217027541.

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

It is a cyclic number.

It is not a de Polignac number, because 1457207123 - 2² = 1457207119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1457207123.

It is not an unprimeable number, because it can be changed into a prime (1457297123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4469798 + ... + 4470123.

It is an arithmetic number, because the mean of its divisors is an integer number (366536802).

Almost surely, 2^1457207123 is an apocalyptic number.

1457207123 is a deficient number, since it is larger than the sum of its proper divisors (8940085).

1457207123 is an equidigital number, since it uses as much as digits as its factorization.

1457207123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8940084.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1457207123 is about 38173.3823887798. The cubic root of 1457207123 is about 1133.7233598109.

The spelling of 1457207123 in words is "one billion, four hundred fifty-seven million, two hundred seven thousand, one hundred twenty-three".