70444121 has 16 divisors (see below), whose sum is σ = 79692288. Its totient is φ = 61689600.

The previous prime is 70444111. The next prime is 70444133. The reversal of 70444121 is 12144407.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 70444121 - 2¹⁰ = 70443097 is a prime.

It is a super-5 number, since 5×70444121⁵ (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70444111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114611 + ... + 115223.

It is an arithmetic number, because the mean of its divisors is an integer number (4980768).

Almost surely, 2^70444121 is an apocalyptic number.

It is an amenable number.

70444121 is a deficient number, since it is larger than the sum of its proper divisors (9248167).

70444121 is a wasteful number, since it uses less digits than its factorization.

70444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 70444121 is about 8393.0996062242. The cubic root of 70444121 is about 412.9982880757.

Adding to 70444121 its reverse (12144407), we get a palindrome (82588528).

The spelling of 70444121 in words is "seventy million, four hundred forty-four thousand, one hundred twenty-one".