70121522 has 4 divisors (see below), whose sum is σ = 105182286. Its totient is φ = 35060760.

The previous prime is 70121501. The next prime is 70121539. The reversal of 70121522 is 22512107.

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

It can be written as a sum of positive squares in only one way, i.e., 57168721 + 12952801 = 7561^2 + 3599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70121494 and 70121503.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17530379 + ... + 17530382.

Almost surely, 2^70121522 is an apocalyptic number.

70121522 is a deficient number, since it is larger than the sum of its proper divisors (35060764).

70121522 is a wasteful number, since it uses less digits than its factorization.

70121522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35060763.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 70121522 is about 8373.8594447244. The cubic root of 70121522 is about 412.3668810736.

Adding to 70121522 its reverse (22512107), we get a palindrome (92633629).

The spelling of 70121522 in words is "seventy million, one hundred twenty-one thousand, five hundred twenty-two".