70143572 has 6 divisors (see below), whose sum is σ = 122751258. Its totient is φ = 35071784.

The previous prime is 70143553. The next prime is 70143587. The reversal of 70143572 is 27534107.

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 23001616 = 6866^2 + 4796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8767943 + ... + 8767950.

It is an arithmetic number, because the mean of its divisors is an integer number (20458543).

Almost surely, 2^70143572 is an apocalyptic number.

It is an amenable number.

70143572 is a deficient number, since it is larger than the sum of its proper divisors (52607686).

70143572 is a wasteful number, since it uses less digits than its factorization.

70143572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17535897 (or 17535895 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 70143572 is about 8375.1759384505. The cubic root of 70143572 is about 412.4101000291.

Adding to 70143572 its reverse (27534107), we get a palindrome (97677679).

The spelling of 70143572 in words is "seventy million, one hundred forty-three thousand, five hundred seventy-two".