1541091457 has 2 divisors, whose sum is σ = 1541091458. Its totient is φ = 1541091456.

The previous prime is 1541091451. The next prime is 1541091469. The reversal of 1541091457 is 7541901451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1490268816 + 50822641 = 38604^2 + 7129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1541091457 - 2³ = 1541091449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1541091451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770545728 + 770545729.

It is an arithmetic number, because the mean of its divisors is an integer number (770545729).

Almost surely, 2^1541091457 is an apocalyptic number.

It is an amenable number.

1541091457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1541091457 is an equidigital number, since it uses as much as digits as its factorization.

1541091457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 1541091457 is about 39256.7377274271. The cubic root of 1541091457 is about 1155.0731029485.

The spelling of 1541091457 in words is "one billion, five hundred forty-one million, ninety-one thousand, four hundred fifty-seven".