70281252 has 18 divisors (see below), whose sum is σ = 177655478. Its totient is φ = 23427072.

The previous prime is 70281251. The next prime is 70281259. The reversal of 70281252 is 25218207.

It can be written as a sum of positive squares in only one way, i.e., 59351616 + 10929636 = 7704^2 + 3306^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (70281251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 976093 + ... + 976164.

Almost surely, 2^70281252 is an apocalyptic number.

It is an amenable number.

70281252 is an abundant number, since it is smaller than the sum of its proper divisors (107374226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70281252 is a wasteful number, since it uses less digits than its factorization.

70281252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952267 (or 1952262 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 70281252 is about 8383.3914378371. The cubic root of 70281252 is about 412.6797541645.

Adding to 70281252 its reverse (25218207), we get a palindrome (95499459).

The spelling of 70281252 in words is "seventy million, two hundred eighty-one thousand, two hundred fifty-two".