1357123441 has 4 divisors (see below), whose sum is σ = 1416128832. Its totient is φ = 1298118052.

The previous prime is 1357123403. The next prime is 1357123457. The reversal of 1357123441 is 1443217531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1357123441 - 2²³ = 1348734833 is a prime.

It is a super-2 number, since 2×1357123441² = 3683568068223360962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357124441) 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, 29502661 + ... + 29502706.

It is an arithmetic number, because the mean of its divisors is an integer number (354032208).

Almost surely, 2^1357123441 is an apocalyptic number.

It is an amenable number.

1357123441 is a deficient number, since it is larger than the sum of its proper divisors (59005391).

1357123441 is an equidigital number, since it uses as much as digits as its factorization.

1357123441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59005390.

The product of its digits is 10080, while the sum is 31.

The square root of 1357123441 is about 36839.1563557039. The cubic root of 1357123441 is about 1107.1499649813.

The spelling of 1357123441 in words is "one billion, three hundred fifty-seven million, one hundred twenty-three thousand, four hundred forty-one".