705493151 has 4 divisors (see below), whose sum is σ = 769628904. Its totient is φ = 641357400.

The previous prime is 705493091. The next prime is 705493153. The reversal of 705493151 is 151394507.

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

It is a cyclic number.

It is not a de Polignac number, because 705493151 - 2²² = 701298847 is a prime.

It is a super-2 number, since 2×705493151² = 995441172215817602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705493153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32067860 + ... + 32067881.

It is an arithmetic number, because the mean of its divisors is an integer number (192407226).

Almost surely, 2^705493151 is an apocalyptic number.

705493151 is a deficient number, since it is larger than the sum of its proper divisors (64135753).

705493151 is a wasteful number, since it uses less digits than its factorization.

705493151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64135752.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 705493151 is about 26561.1210418536. The cubic root of 705493151 is about 890.2205197786.

The spelling of 705493151 in words is "seven hundred five million, four hundred ninety-three thousand, one hundred fifty-one".