1534405161 has 4 divisors (see below), whose sum is σ = 2045873552. Its totient is φ = 1022936772.

The previous prime is 1534405139. The next prime is 1534405241. The reversal of 1534405161 is 1615044351.

It is a happy number.

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: 1615044351 = 3 ⋅538348117.

It is not a de Polignac number, because 1534405161 - 2¹⁵ = 1534372393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1534405121) 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, 255734191 + ... + 255734196.

It is an arithmetic number, because the mean of its divisors is an integer number (511468388).

Almost surely, 2^1534405161 is an apocalyptic number.

It is an amenable number.

1534405161 is a deficient number, since it is larger than the sum of its proper divisors (511468391).

1534405161 is an equidigital number, since it uses as much as digits as its factorization.

1534405161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511468390.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1534405161 is about 39171.4840285634. The cubic root of 1534405161 is about 1153.4001853412.

The spelling of 1534405161 in words is "one billion, five hundred thirty-four million, four hundred five thousand, one hundred sixty-one".