23141457 has 10 divisors (see below), whose sum is σ = 34569458. Its totient is φ = 15427584.

The previous prime is 23141441. The next prime is 23141477. The reversal of 23141457 is 75414132.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 10439361 = 3564^2 + 3231^2 .

It is not a de Polignac number, because 23141457 - 2⁴ = 23141441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23141457.

It is not an unprimeable number, because it can be changed into a prime (23141477) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 142768 + ... + 142929.

Almost surely, 2^23141457 is an apocalyptic number.

23141457 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23141457 is a deficient number, since it is larger than the sum of its proper divisors (11428001).

23141457 is an equidigital number, since it uses as much as digits as its factorization.

23141457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285709 (or 285700 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 23141457 is about 4810.5568284763. The cubic root of 23141457 is about 284.9685283808.

Adding to 23141457 its reverse (75414132), we get a palindrome (98555589).

The spelling of 23141457 in words is "twenty-three million, one hundred forty-one thousand, four hundred fifty-seven".