1531141461 has 20 divisors (see below), whose sum is σ = 2288433312. Its totient is φ = 1020237768.

The previous prime is 1531141459. The next prime is 1531141471. The reversal of 1531141461 is 1641411351.

1531141461 is a `hidden beast` number, since 153 + 11 + 41 + 461 = 666.

It is not a de Polignac number, because 1531141461 - 2¹ = 1531141459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531141471) 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 19 ways as a sum of consecutive naturals, for example, 215776 + ... + 222758.

Almost surely, 2^1531141461 is an apocalyptic number.

It is an amenable number.

1531141461 is a deficient number, since it is larger than the sum of its proper divisors (757291851).

1531141461 is an equidigital number, since it uses as much as digits as its factorization.

1531141461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702 (or 9693 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 1531141461 is about 39129.8027211996. The cubic root of 1531141461 is about 1152.5818390571.

The spelling of 1531141461 in words is "one billion, five hundred thirty-one million, one hundred forty-one thousand, four hundred sixty-one".