3145105457 has 4 divisors (see below), whose sum is σ = 3387036660. Its totient is φ = 2903174256.

The previous prime is 3145105433. The next prime is 3145105493. The reversal of 3145105457 is 7545015413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 471801841 + 2673303616 = 21721^2 + 51704^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145105457 - 2¹² = 3145101361 is a prime.

It is a super-3 number, since 3×3145105457³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145105427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120965582 + ... + 120965607.

It is an arithmetic number, because the mean of its divisors is an integer number (846759165).

Almost surely, 2^3145105457 is an apocalyptic number.

It is an amenable number.

3145105457 is a deficient number, since it is larger than the sum of its proper divisors (241931203).

3145105457 is a wasteful number, since it uses less digits than its factorization.

3145105457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241931202.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 3145105457 is about 56081.2397954967. The cubic root of 3145105457 is about 1465.1375669409.

The spelling of 3145105457 in words is "three billion, one hundred forty-five million, one hundred five thousand, four hundred fifty-seven".