1457172903 has 8 divisors (see below), whose sum is σ = 1944902016. Its totient is φ = 970446200.

The previous prime is 1457172877. The next prime is 1457172919. The reversal of 1457172903 is 3092717541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1457172903 - 2⁶ = 1457172839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457172953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247203 + ... + 253028.

It is an arithmetic number, because the mean of its divisors is an integer number (243112752).

Almost surely, 2^1457172903 is an apocalyptic number.

1457172903 is a deficient number, since it is larger than the sum of its proper divisors (487729113).

1457172903 is an equidigital number, since it uses as much as digits as its factorization.

1457172903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501205.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 1457172903 is about 38172.9341680725. The cubic root of 1457172903 is about 1133.7144852278.

The spelling of 1457172903 in words is "one billion, four hundred fifty-seven million, one hundred seventy-two thousand, nine hundred three".