1551151155 has 48 divisors (see below), whose sum is σ = 2564485632. Its totient is φ = 800582400.

The previous prime is 1551151141. The next prime is 1551151157. The reversal of 1551151155 is 5511511551.

It is a happy number.

It is not a de Polignac number, because 1551151155 - 2¹³ = 1551142963 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1551151157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5723670 + ... + 5723940.

It is an arithmetic number, because the mean of its divisors is an integer number (53426784).

Almost surely, 2^1551151155 is an apocalyptic number.

1551151155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1551151155 is a deficient number, since it is larger than the sum of its proper divisors (1013334477).

1551151155 is a wasteful number, since it uses less digits than its factorization.

1551151155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 547 counting only the distinct ones).

The product of its digits is 3125, while the sum is 30.

The square root of 1551151155 is about 39384.6563397473. The cubic root of 1551151155 is about 1157.5809564482.

It can be divided in two parts, 15511 and 51155, that added together give a palindrome (66666).

The spelling of 1551151155 in words is "one billion, five hundred fifty-one million, one hundred fifty-one thousand, one hundred fifty-five".