67131315 has 16 divisors (see below), whose sum is σ = 119344800. Its totient is φ = 35803296.

The previous prime is 67131269. The next prime is 67131329. The reversal of 67131315 is 51313176.

It is not a de Polignac number, because 67131315 - 2¹⁰ = 67130291 is a prime.

It is a super-2 number, since 2×67131315² = 9013226907258450, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248500 + ... + 248769.

It is an arithmetic number, because the mean of its divisors is an integer number (7459050).

Almost surely, 2^67131315 is an apocalyptic number.

67131315 is a deficient number, since it is larger than the sum of its proper divisors (52213485).

67131315 is a wasteful number, since it uses less digits than its factorization.

67131315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497283 (or 497277 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 67131315 is about 8193.3701857050. The cubic root of 67131315 is about 406.4199812539.

The spelling of 67131315 in words is "sixty-seven million, one hundred thirty-one thousand, three hundred fifteen".