22154151 has 8 divisors (see below), whose sum is σ = 29584384. Its totient is φ = 14746680.

The previous prime is 22154137. The next prime is 22154177. The reversal of 22154151 is 15145122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22154151 - 2¹⁴ = 22137767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3271 + ... + 7416.

It is an arithmetic number, because the mean of its divisors is an integer number (3698048).

Almost surely, 2^22154151 is an apocalyptic number.

22154151 is a deficient number, since it is larger than the sum of its proper divisors (7430233).

22154151 is a wasteful number, since it uses less digits than its factorization.

22154151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381.

The product of its digits is 400, while the sum is 21.

The square root of 22154151 is about 4706.8196268818. The cubic root of 22154151 is about 280.8568606900.

Adding to 22154151 its reverse (15145122), we get a palindrome (37299273).

The spelling of 22154151 in words is "twenty-two million, one hundred fifty-four thousand, one hundred fifty-one".