97142426 has 4 divisors (see below), whose sum is σ = 145713642. Its totient is φ = 48571212.

The previous prime is 97142417. The next prime is 97142449. The reversal of 97142426 is 62424179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62424179 = 661 ⋅94439.

It can be written as a sum of positive squares in only one way, i.e., 96334225 + 808201 = 9815^2 + 899^2 .

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, 24285605 + ... + 24285608.

Almost surely, 2^97142426 is an apocalyptic number.

97142426 is a deficient number, since it is larger than the sum of its proper divisors (48571216).

97142426 is a wasteful number, since it uses less digits than its factorization.

97142426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48571215.

The product of its digits is 24192, while the sum is 35.

The square root of 97142426 is about 9856.0857342050. The cubic root of 97142426 is about 459.6948606436.

The spelling of 97142426 in words is "ninety-seven million, one hundred forty-two thousand, four hundred twenty-six".