1454719857 has 16 divisors (see below), whose sum is σ = 2107576320. Its totient is φ = 889131600.

The previous prime is 1454719843. The next prime is 1454719873. The reversal of 1454719857 is 7589174541.

It is not a de Polignac number, because 1454719857 - 2¹¹ = 1454717809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1454719817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409869 + ... + 413402.

It is an arithmetic number, because the mean of its divisors is an integer number (131723520).

Almost surely, 2^1454719857 is an apocalyptic number.

It is an amenable number.

1454719857 is a deficient number, since it is larger than the sum of its proper divisors (652856463).

1454719857 is a wasteful number, since it uses less digits than its factorization.

1454719857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823324.

The product of its digits is 1411200, while the sum is 51.

The square root of 1454719857 is about 38140.7899367593. The cubic root of 1454719857 is about 1133.0779522520.

The spelling of 1454719857 in words is "one billion, four hundred fifty-four million, seven hundred nineteen thousand, eight hundred fifty-seven".