1154470738369 has 9 divisors (see below), whose sum is σ = 1250122492899. Its totient is φ = 1065652403400.

The previous prime is 1154470738357. The next prime is 1154470738373. The reversal of 1154470738369 is 9638370744511.

It is a happy number.

The square root of 1154470738369 is 1074463.

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., 170779695025 + 983691043344 = 413255^2 + 991812^2 .

It is not a de Polignac number, because 1154470738369 - 2⁹ = 1154470737857 is a prime.

It is a super-3 number, since 3×1154470738369³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154470738319) 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, 13926694 + ... + 14009344.

It is an arithmetic number, because the mean of its divisors is an integer number (138902499211).

Almost surely, 2^{1154470738369} is an apocalyptic number.

1154470738369 is the 1074463-rd square number.

1154470738369 is the 537232-nd centered octagonal number.

It is an amenable number.

1154470738369 is a deficient number, since it is larger than the sum of its proper divisors (95651754530).

1154470738369 is an frugal number, since it uses more digits than its factorization.

1154470738369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165328 (or 82664 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 1154470738369 in words is "one trillion, one hundred fifty-four billion, four hundred seventy million, seven hundred thirty-eight thousand, three hundred sixty-nine".