1370690685225 has 45 divisors (see below), whose sum is σ = 2539090561557. Its totient is φ = 731006933760.

The previous prime is 1370690685191. The next prime is 1370690685281. The reversal of 1370690685225 is 5225860960731.

The square root of 1370690685225 is 1170765.

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 22853275929 + 1347837409296 = 151173^2 + 1160964^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 1370690685225 - 2¹⁷ = 1370690554153 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 52671417 + ... + 52697433.

Almost surely, 2^{1370690685225} is an apocalyptic number.

1370690685225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1370690685225 is the 1170765-th square number.

1370690685225 is the 585383-rd centered octagonal number.

It is an amenable number.

1370690685225 is a deficient number, since it is larger than the sum of its proper divisors (1168399876332).

1370690685225 is an frugal number, since it uses more digits than its factorization.

1370690685225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52056 (or 26025 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 1370690685225 in words is "one trillion, three hundred seventy billion, six hundred ninety million, six hundred eighty-five thousand, two hundred twenty-five".