1541267161 has 4 divisors (see below), whose sum is σ = 1761448192. Its totient is φ = 1321086132.

The previous prime is 1541267093. The next prime is 1541267183. The reversal of 1541267161 is 1617621451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1617621451 = 17 ⋅95154203.

It is a cyclic number.

It is not a de Polignac number, because 1541267161 - 2⁷ = 1541267033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1541267261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110090505 + ... + 110090518.

It is an arithmetic number, because the mean of its divisors is an integer number (440362048).

Almost surely, 2^1541267161 is an apocalyptic number.

It is an amenable number.

1541267161 is a deficient number, since it is larger than the sum of its proper divisors (220181031).

1541267161 is an equidigital number, since it uses as much as digits as its factorization.

1541267161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220181030.

The product of its digits is 10080, while the sum is 34.

The square root of 1541267161 is about 39258.9755470007. The cubic root of 1541267161 is about 1155.1169989485.

The spelling of 1541267161 in words is "one billion, five hundred forty-one million, two hundred sixty-seven thousand, one hundred sixty-one".