155240032 has 24 divisors (see below), whose sum is σ = 321715800. Its totient is φ = 73534464.

The previous prime is 155240017. The next prime is 155240053. The reversal of 155240032 is 230042551.

It is a super-2 number, since 2×155240032² = 48198935070722048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155239985 and 155240012.

It is a congruent number.

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, 127057 + ... + 128272.

It is an arithmetic number, because the mean of its divisors is an integer number (13404825).

Almost surely, 2^155240032 is an apocalyptic number.

It is an amenable number.

155240032 is an abundant number, since it is smaller than the sum of its proper divisors (166475768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155240032 is a wasteful number, since it uses less digits than its factorization.

155240032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255358 (or 255350 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 155240032 is about 12459.5357858951. The cubic root of 155240032 is about 537.4456777263.

Adding to 155240032 its reverse (230042551), we get a palindrome (385282583).

The spelling of 155240032 in words is "one hundred fifty-five million, two hundred forty thousand, thirty-two".