155035442 has 8 divisors (see below), whose sum is σ = 232775532. Its totient is φ = 77443600.

The previous prime is 155035423. The next prime is 155035477. The reversal of 155035442 is 244530551.

It can be written as a sum of positive squares in 2 ways, for example, as 146918641 + 8116801 = 12121^2 + 2849^2 .

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

It is a super-2 number, since 2×155035442² = 48071976552270728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34409 + ... + 38652.

Almost surely, 2^155035442 is an apocalyptic number.

155035442 is a deficient number, since it is larger than the sum of its proper divisors (77740090).

155035442 is a wasteful number, since it uses less digits than its factorization.

155035442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74124.

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

The square root of 155035442 is about 12451.3229016037. The cubic root of 155035442 is about 537.2094750135.

Adding to 155035442 its reverse (244530551), we get a palindrome (399565993).

The spelling of 155035442 in words is "one hundred fifty-five million, thirty-five thousand, four hundred forty-two".