146761779025 has 27 divisors (see below), whose sum is σ = 193362189969. Its totient is φ = 110478468480.

The previous prime is 146761778987. The next prime is 146761779041. The reversal of 146761779025 is 520977167641.

The square root of 146761779025 is 383095.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3432905281 + 143328873744 = 58591^2 + 378588^2 .

It is not a de Polignac number, because 146761779025 - 2¹⁷ = 146761647953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 32560822 + ... + 32565328.

Almost surely, 2^146761779025 is an apocalyptic number.

146761779025 is the 383095-th square number.

146761779025 is the 191548-th centered octagonal number.

It is an amenable number.

146761779025 is a deficient number, since it is larger than the sum of its proper divisors (46600410944).

146761779025 is an frugal number, since it uses more digits than its factorization.

146761779025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9058 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 146761779025 in words is "one hundred forty-six billion, seven hundred sixty-one million, seven hundred seventy-nine thousand, twenty-five".