70542743 has 8 divisors (see below), whose sum is σ = 71943456. Its totient is φ = 69156000.

The previous prime is 70542739. The next prime is 70542749. The reversal of 70542743 is 34724507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70542743 - 2² = 70542739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70542749) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7013 + ... + 13793.

It is an arithmetic number, because the mean of its divisors is an integer number (8992932).

Almost surely, 2^70542743 is an apocalyptic number.

70542743 is a deficient number, since it is larger than the sum of its proper divisors (1400713).

70542743 is a wasteful number, since it uses less digits than its factorization.

70542743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 70542743 is about 8398.9727348051. The cubic root of 70542743 is about 413.1909311884.

The spelling of 70542743 in words is "seventy million, five hundred forty-two thousand, seven hundred forty-three".