1374735145081 has 3 divisors (see below), whose sum is σ = 1374736317573. Its totient is φ = 1374733972590.

The previous prime is 1374735145057. The next prime is 1374735145207. The reversal of 1374735145081 is 1805415374731.

The square root of 1374735145081 is 1172491.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1374735145081 - 2¹⁹ = 1374734620793 is a prime.

It is a super-2 number, since 2×1374735145081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374735125081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 586246 + ... + 1758736.

It is an arithmetic number, because the mean of its divisors is an integer number (458245439191).

Almost surely, 2^{1374735145081} is an apocalyptic number.

1374735145081 is the 1172491-st square number.

1374735145081 is the 586246-th centered octagonal number.

It is an amenable number.

1374735145081 is a deficient number, since it is larger than the sum of its proper divisors (1172492).

1374735145081 is an frugal number, since it uses more digits than its factorization.

1374735145081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344982 (or 1172491 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

Multiplying 1374735145081 by its sum of digits (49), we get a square (67362022108969 = 8207437²).

The spelling of 1374735145081 in words is "one trillion, three hundred seventy-four billion, seven hundred thirty-five million, one hundred forty-five thousand, eighty-one".