147774892225 has 9 divisors (see below), whose sum is σ = 183243249763. Its totient is φ = 118218376120.

The previous prime is 147774892211. The next prime is 147774892229. The reversal of 147774892225 is 522298477741.

It is a happy number.

The square root of 147774892225 is 384415.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 53198961201 + 94575931024 = 230649^2 + 307532^2 .

It is not a de Polignac number, because 147774892225 - 2²⁷ = 147640674497 is a prime.

It is a super-2 number, since 2×147774892225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147774892225.

It is not an unprimeable number, because it can be changed into a prime (147774892229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1883634 + ... + 1960516.

Almost surely, 2^147774892225 is an apocalyptic number.

147774892225 is the 384415-th square number.

147774892225 is the 192208-th centered octagonal number.

It is an amenable number.

147774892225 is a deficient number, since it is larger than the sum of its proper divisors (35468357538).

147774892225 is an frugal number, since it uses more digits than its factorization.

147774892225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153776 (or 76888 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 58.

The spelling of 147774892225 in words is "one hundred forty-seven billion, seven hundred seventy-four million, eight hundred ninety-two thousand, two hundred twenty-five".