22151453 has 4 divisors (see below), whose sum is σ = 22866048. Its totient is φ = 21436860.

The previous prime is 22151449. The next prime is 22151471. The reversal of 22151453 is 35415122.

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 22151453 - 2² = 22151449 is a prime.

It is a super-2 number, since 2×22151453² = 981373740022418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151443) 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, 357251 + ... + 357312.

It is an arithmetic number, because the mean of its divisors is an integer number (5716512).

Almost surely, 2^22151453 is an apocalyptic number.

It is an amenable number.

22151453 is a deficient number, since it is larger than the sum of its proper divisors (714595).

22151453 is an equidigital number, since it uses as much as digits as its factorization.

22151453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714594.

The product of its digits is 1200, while the sum is 23.

The square root of 22151453 is about 4706.5330127388. The cubic root of 22151453 is about 280.8454590257.

Adding to 22151453 its reverse (35415122), we get a palindrome (57566575).

The spelling of 22151453 in words is "twenty-two million, one hundred fifty-one thousand, four hundred fifty-three".