8157412 has 6 divisors (see below), whose sum is σ = 14275478. Its totient is φ = 4078704.

The previous prime is 8157379. The next prime is 8157421. The reversal of 8157412 is 2147518.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 676 = 2856^2 + 26^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019673 + ... + 1019680.

Almost surely, 2^8157412 is an apocalyptic number.

It is an amenable number.

8157412 is a deficient number, since it is larger than the sum of its proper divisors (6118066).

8157412 is a wasteful number, since it uses less digits than its factorization.

8157412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039357 (or 2039355 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 8157412 is about 2856.1183448870. The cubic root of 8157412 is about 201.3032558415.

The spelling of 8157412 in words is "eight million, one hundred fifty-seven thousand, four hundred twelve".