154215022 has 16 divisors (see below), whose sum is σ = 255194352. Its totient is φ = 69439680.

The previous prime is 154215013. The next prime is 154215043. The reversal of 154215022 is 220512451.

It is a junction number, because it is equal to n+sod(n) for n = 154214984 and 154215002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71268 + ... + 73399.

It is an arithmetic number, because the mean of its divisors is an integer number (15949647).

Almost surely, 2^154215022 is an apocalyptic number.

154215022 is a deficient number, since it is larger than the sum of its proper divisors (100979330).

154215022 is a wasteful number, since it uses less digits than its factorization.

154215022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144723.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 154215022 is about 12418.3341072786. The cubic root of 154215022 is about 536.2601928792.

Adding to 154215022 its reverse (220512451), we get a palindrome (374727473).

The spelling of 154215022 in words is "one hundred fifty-four million, two hundred fifteen thousand, twenty-two".