775147252 has 24 divisors (see below), whose sum is σ = 1504091232. Its totient is φ = 346562400.

The previous prime is 775147223. The next prime is 775147253. The reversal of 775147252 is 252741577.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775147253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141718 + ... + 147085.

It is an arithmetic number, because the mean of its divisors is an integer number (62670468).

Almost surely, 2^775147252 is an apocalyptic number.

It is an amenable number.

775147252 is a deficient number, since it is larger than the sum of its proper divisors (728943980).

775147252 is a wasteful number, since it uses less digits than its factorization.

775147252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288879 (or 288877 counting only the distinct ones).

The product of its digits is 137200, while the sum is 40.

The square root of 775147252 is about 27841.4664125294. The cubic root of 775147252 is about 918.6034466472.

The spelling of 775147252 in words is "seven hundred seventy-five million, one hundred forty-seven thousand, two hundred fifty-two".