70860121 has 4 divisors (see below), whose sum is σ = 72061200. Its totient is φ = 69659044.

The previous prime is 70860113. The next prime is 70860187. The reversal of 70860121 is 12106807.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12106807 = 37 ⋅327211.

It is a cyclic number.

It is not a de Polignac number, because 70860121 - 2³ = 70860113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70860191) 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, 600451 + ... + 600568.

It is an arithmetic number, because the mean of its divisors is an integer number (18015300).

Almost surely, 2^70860121 is an apocalyptic number.

It is an amenable number.

70860121 is a deficient number, since it is larger than the sum of its proper divisors (1201079).

70860121 is a wasteful number, since it uses less digits than its factorization.

70860121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201078.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 70860121 is about 8417.8453894093. The cubic root of 70860121 is about 413.8096649716.

Adding to 70860121 its reverse (12106807), we get a palindrome (82966928).

The spelling of 70860121 in words is "seventy million, eight hundred sixty thousand, one hundred twenty-one".