1554415161 has 16 divisors (see below), whose sum is σ = 2279472384. Its totient is φ = 936209664.

The previous prime is 1554415157. The next prime is 1554415199. The reversal of 1554415161 is 1615144551.

It is not a de Polignac number, because 1554415161 - 2² = 1554415157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1554419161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422176 + ... + 425841.

It is an arithmetic number, because the mean of its divisors is an integer number (142467024).

Almost surely, 2^1554415161 is an apocalyptic number.

It is an amenable number.

1554415161 is a deficient number, since it is larger than the sum of its proper divisors (725057223).

1554415161 is a wasteful number, since it uses less digits than its factorization.

1554415161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848080.

The product of its digits is 12000, while the sum is 33.

The square root of 1554415161 is about 39426.0720970274. The cubic root of 1554415161 is about 1158.3923332277.

The spelling of 1554415161 in words is "one billion, five hundred fifty-four million, four hundred fifteen thousand, one hundred sixty-one".