1357124845 has 4 divisors (see below), whose sum is σ = 1628549820. Its totient is φ = 1085699872.

The previous prime is 1357124833. The next prime is 1357124863. The reversal of 1357124845 is 5484217531.

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 329858244 + 1027266601 = 18162^2 + 32051^2 .

It is a cyclic number.

It is not a de Polignac number, because 1357124845 - 2²⁹ = 820253933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1357124798 and 1357124807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135712480 + ... + 135712489.

It is an arithmetic number, because the mean of its divisors is an integer number (407137455).

Almost surely, 2^1357124845 is an apocalyptic number.

It is an amenable number.

1357124845 is a deficient number, since it is larger than the sum of its proper divisors (271424975).

1357124845 is an equidigital number, since it uses as much as digits as its factorization.

1357124845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271424974.

The product of its digits is 134400, while the sum is 40.

The square root of 1357124845 is about 36839.1754115100. The cubic root of 1357124845 is about 1107.1503467785.

It can be divided in two parts, 13571 and 24845, that added together give a 4-th power (38416 = 14⁴).

The spelling of 1357124845 in words is "one billion, three hundred fifty-seven million, one hundred twenty-four thousand, eight hundred forty-five".