1457622149 has 2 divisors, whose sum is σ = 1457622150. Its totient is φ = 1457622148.

The previous prime is 1457622097. The next prime is 1457622163. The reversal of 1457622149 is 9412267541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 853691524 + 603930625 = 29218^2 + 24575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457622149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457622169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728811074 + 728811075.

It is an arithmetic number, because the mean of its divisors is an integer number (728811075).

Almost surely, 2^1457622149 is an apocalyptic number.

It is an amenable number.

1457622149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457622149 is an equidigital number, since it uses as much as digits as its factorization.

1457622149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 1457622149 is about 38178.8180670906. The cubic root of 1457622149 is about 1133.8309812100.

The spelling of 1457622149 in words is "one billion, four hundred fifty-seven million, six hundred twenty-two thousand, one hundred forty-nine".