1154272745 has 8 divisors (see below), whose sum is σ = 1388843016. Its totient is φ = 920941056.

The previous prime is 1154272741. The next prime is 1154272807. The reversal of 1154272745 is 5472724511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 91317136 + 1062955609 = 9556^2 + 32603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1154272745 - 2² = 1154272741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1154272699 and 1154272708.

It is not an unprimeable number, because it can be changed into a prime (1154272741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307592 + ... + 311321.

It is an arithmetic number, because the mean of its divisors is an integer number (173605377).

Almost surely, 2^1154272745 is an apocalyptic number.

It is an amenable number.

1154272745 is a deficient number, since it is larger than the sum of its proper divisors (234570271).

1154272745 is an equidigital number, since it uses as much as digits as its factorization.

1154272745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619291.

The product of its digits is 78400, while the sum is 38.

The square root of 1154272745 is about 33974.5896958300. The cubic root of 1154272745 is about 1048.9854887256.

The spelling of 1154272745 in words is "one billion, one hundred fifty-four million, two hundred seventy-two thousand, seven hundred forty-five".