1551160531 has 4 divisors (see below), whose sum is σ = 1551396064. Its totient is φ = 1550925000.

The previous prime is 1551160517. The next prime is 1551160553. The reversal of 1551160531 is 1350611551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1551160531 - 2¹⁵ = 1551127763 is a prime.

It is a super-2 number, since 2×1551160531² = 4812197985864403922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1551160531.

It is not an unprimeable number, because it can be changed into a prime (1551160231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107595 + ... + 121156.

It is an arithmetic number, because the mean of its divisors is an integer number (387849016).

Almost surely, 2^1551160531 is an apocalyptic number.

1551160531 is a deficient number, since it is larger than the sum of its proper divisors (235533).

1551160531 is an equidigital number, since it uses as much as digits as its factorization.

1551160531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235532.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 1551160531 is about 39384.7753706937. The cubic root of 1551160531 is about 1157.5832887928.

The spelling of 1551160531 in words is "one billion, five hundred fifty-one million, one hundred sixty thousand, five hundred thirty-one".