1551561114 has 64 divisors (see below), whose sum is σ = 3295313280. Its totient is φ = 486420480.

The previous prime is 1551561113. The next prime is 1551561197. The reversal of 1551561114 is 4111651551.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1551561113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 768234 + ... + 770250.

It is an arithmetic number, because the mean of its divisors is an integer number (51489270).

Almost surely, 2^1551561114 is an apocalyptic number.

1551561114 is an abundant number, since it is smaller than the sum of its proper divisors (1743752166).

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

1551561114 is a wasteful number, since it uses less digits than its factorization.

1551561114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175.

The product of its digits is 3000, while the sum is 30.

The square root of 1551561114 is about 39389.8605481157. The cubic root of 1551561114 is about 1157.6829277977.

The spelling of 1551561114 in words is "one billion, five hundred fifty-one million, five hundred sixty-one thousand, one hundred fourteen".