70161297 has 4 divisors (see below), whose sum is σ = 93548400. Its totient is φ = 46774196.

The previous prime is 70161283. The next prime is 70161307. The reversal of 70161297 is 79216107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70161297 - 2¹⁶ = 70095761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70161997) 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, 11693547 + ... + 11693552.

It is an arithmetic number, because the mean of its divisors is an integer number (23387100).

Almost surely, 2^70161297 is an apocalyptic number.

It is an amenable number.

70161297 is a deficient number, since it is larger than the sum of its proper divisors (23387103).

70161297 is a wasteful number, since it uses less digits than its factorization.

70161297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23387102.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 70161297 is about 8376.2340583343. The cubic root of 70161297 is about 412.4448352309. Note that the first 3 decimals are identical.

The spelling of 70161297 in words is "seventy million, one hundred sixty-one thousand, two hundred ninety-seven".