1512078131 has 2 divisors, whose sum is σ = 1512078132. Its totient is φ = 1512078130.

The previous prime is 1512078109. The next prime is 1512078133. The reversal of 1512078131 is 1318702151.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1512078131 is a prime.

It is a super-2 number, since 2×1512078131² = 4572760548496906322, which contains 22 as substring.

Together with 1512078133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1512078094 and 1512078103.

It is not a weakly prime, because it can be changed into another prime (1512078133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756039065 + 756039066.

It is an arithmetic number, because the mean of its divisors is an integer number (756039066).

Almost surely, 2^1512078131 is an apocalyptic number.

1512078131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1512078131 is an equidigital number, since it uses as much as digits as its factorization.

1512078131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 1512078131 is about 38885.4488337219. The cubic root of 1512078131 is about 1147.7784790618.

The spelling of 1512078131 in words is "one billion, five hundred twelve million, seventy-eight thousand, one hundred thirty-one".