70743146 has 4 divisors (see below), whose sum is σ = 106114722. Its totient is φ = 35371572.

The previous prime is 70743133. The next prime is 70743187. The reversal of 70743146 is 64134707.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66601921 + 4141225 = 8161^2 + 2035^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17685785 + ... + 17685788.

Almost surely, 2^70743146 is an apocalyptic number.

70743146 is a deficient number, since it is larger than the sum of its proper divisors (35371576).

70743146 is a wasteful number, since it uses less digits than its factorization.

70743146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35371575.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 70743146 is about 8410.8944827527. The cubic root of 70743146 is about 413.5818356228.

The spelling of 70743146 in words is "seventy million, seven hundred forty-three thousand, one hundred forty-six".