1534140331 has 4 divisors (see below), whose sum is σ = 1534302792. Its totient is φ = 1533977872.

The previous prime is 1534140271. The next prime is 1534140371. The reversal of 1534140331 is 1330414351.

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 1534140331 - 2¹⁵ = 1534107563 is a prime.

It is a super-2 number, since 2×1534140331² = 4707173110401579122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1534140296 and 1534140305.

It is not an unprimeable number, because it can be changed into a prime (1534140371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66130 + ... + 86263.

It is an arithmetic number, because the mean of its divisors is an integer number (383575698).

Almost surely, 2^1534140331 is an apocalyptic number.

1534140331 is a deficient number, since it is larger than the sum of its proper divisors (162461).

1534140331 is a wasteful number, since it uses less digits than its factorization.

1534140331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162460.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1534140331 is about 39168.1034899572. The cubic root of 1534140331 is about 1153.3338246533. Note that the first 3 decimals are identical.

Adding to 1534140331 its reverse (1330414351), we get a palindrome (2864554682).

The spelling of 1534140331 in words is "one billion, five hundred thirty-four million, one hundred forty thousand, three hundred thirty-one".