152770745 has 4 divisors (see below), whose sum is σ = 183324900. Its totient is φ = 122216592.

The previous prime is 152770741. The next prime is 152770781. The reversal of 152770745 is 547077251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547077251 = 7 ⋅78153893.

It can be written as a sum of positive squares in 2 ways, for example, as 15904144 + 136866601 = 3988^2 + 11699^2 .

It is a cyclic number.

It is not a de Polignac number, because 152770745 - 2² = 152770741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152770699 and 152770708.

It is not an unprimeable number, because it can be changed into a prime (152770741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15277070 + ... + 15277079.

It is an arithmetic number, because the mean of its divisors is an integer number (45831225).

Almost surely, 2^152770745 is an apocalyptic number.

It is an amenable number.

152770745 is a deficient number, since it is larger than the sum of its proper divisors (30554155).

152770745 is an equidigital number, since it uses as much as digits as its factorization.

152770745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30554154.

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 152770745 is about 12360.0463186834. The cubic root of 152770745 is about 534.5808520094.

The spelling of 152770745 in words is "one hundred fifty-two million, seven hundred seventy thousand, seven hundred forty-five".