1340125031 has 8 divisors (see below), whose sum is σ = 1545886080. Its totient is φ = 1137942648.

The previous prime is 1340125019. The next prime is 1340125037. The reversal of 1340125031 is 1305210431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340125031 - 2¹⁰ = 1340124007 is a prime.

It is a super-2 number, since 2×1340125031² = 3591870197425501922, 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 = 1340124994 and 1340125012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340125037) 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 7 ways as a sum of consecutive naturals, for example, 893861 + ... + 895358.

It is an arithmetic number, because the mean of its divisors is an integer number (193235760).

Almost surely, 2^1340125031 is an apocalyptic number.

1340125031 is a deficient number, since it is larger than the sum of its proper divisors (205761049).

1340125031 is a wasteful number, since it uses less digits than its factorization.

1340125031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789333.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1340125031 is about 36607.7181889284. The cubic root of 1340125031 is about 1102.5080597858.

Adding to 1340125031 its reverse (1305210431), we get a palindrome (2645335462).

The spelling of 1340125031 in words is "one billion, three hundred forty million, one hundred twenty-five thousand, thirty-one".