1457894129 has 2 divisors, whose sum is σ = 1457894130. Its totient is φ = 1457894128.

The previous prime is 1457894101. The next prime is 1457894167. The reversal of 1457894129 is 9214987541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1285365904 + 172528225 = 35852^2 + 13135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457894129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1457894029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728947064 + 728947065.

It is an arithmetic number, because the mean of its divisors is an integer number (728947065).

Almost surely, 2^1457894129 is an apocalyptic number.

It is an amenable number.

1457894129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457894129 is an equidigital number, since it uses as much as digits as its factorization.

1457894129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 50.

The square root of 1457894129 is about 38182.3798236831. The cubic root of 1457894129 is about 1133.9014979239.

The spelling of 1457894129 in words is "one billion, four hundred fifty-seven million, eight hundred ninety-four thousand, one hundred twenty-nine".