1427161554 has 144 divisors (see below), whose sum is σ = 4078226880. Its totient is φ = 356529600.

The previous prime is 1427161537. The next prime is 1427161559. The reversal of 1427161554 is 4551617241.

1427161554 is a `hidden beast` number, since 1 + 42 + 7 + 1 + 61 + 554 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427161559) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 214579 + ... + 221129.

It is an arithmetic number, because the mean of its divisors is an integer number (28321020).

Almost surely, 2^1427161554 is an apocalyptic number.

1427161554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427161554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039113440).

1427161554 is an abundant number, since it is smaller than the sum of its proper divisors (2651065326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1427161554 is a wasteful number, since it uses less digits than its factorization.

1427161554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605 (or 6595 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1427161554 is about 37777.7918094745. The cubic root of 1427161554 is about 1125.8772559011.

Adding to 1427161554 its reverse (4551617241), we get a palindrome (5978778795).

The spelling of 1427161554 in words is "one billion, four hundred twenty-seven million, one hundred sixty-one thousand, five hundred fifty-four".