155522342 has 16 divisors (see below), whose sum is σ = 238859712. Its totient is φ = 75911040.

The previous prime is 155522333. The next prime is 155522351. The reversal of 155522342 is 243225551.

It is an interprime number because it is at equal distance from previous prime (155522333) and next prime (155522351).

It is a super-2 number, since 2×155522342² = 48374397722329928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38792 + ... + 42612.

It is an arithmetic number, because the mean of its divisors is an integer number (14928732).

Almost surely, 2^155522342 is an apocalyptic number.

155522342 is a deficient number, since it is larger than the sum of its proper divisors (83337370).

155522342 is a wasteful number, since it uses less digits than its factorization.

155522342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303.

The product of its digits is 12000, while the sum is 29.

The square root of 155522342 is about 12470.8597137487. The cubic root of 155522342 is about 537.7712690203.

Adding to 155522342 its reverse (243225551), we get a palindrome (398747893).

The spelling of 155522342 in words is "one hundred fifty-five million, five hundred twenty-two thousand, three hundred forty-two".