154222031 has 8 divisors (see below), whose sum is σ = 166727280. Its totient is φ = 142155648.

The previous prime is 154221979. The next prime is 154222049. The reversal of 154222031 is 130222451.

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

It is a cyclic number.

It is not a de Polignac number, because 154222031 - 2¹⁰ = 154221007 is a prime.

It is a super-2 number, since 2×154222031² = 47568869691529922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154221994 and 154222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154222231) 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, 108986 + ... + 110391.

It is an arithmetic number, because the mean of its divisors is an integer number (20840910).

Almost surely, 2^154222031 is an apocalyptic number.

154222031 is a deficient number, since it is larger than the sum of its proper divisors (12505249).

154222031 is a wasteful number, since it uses less digits than its factorization.

154222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219433.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 154222031 is about 12418.6163077857. The cubic root of 154222031 is about 536.2683170137.

Adding to 154222031 its reverse (130222451), we get a palindrome (284444482).

The spelling of 154222031 in words is "one hundred fifty-four million, two hundred twenty-two thousand, thirty-one".