155242246 has 8 divisors (see below), whose sum is σ = 233153640. Its totient is φ = 77524368.

The previous prime is 155242237. The next prime is 155242259. The reversal of 155242246 is 642242551.

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

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 3 ways as a sum of consecutive naturals, for example, 46356 + ... + 49591.

It is an arithmetic number, because the mean of its divisors is an integer number (29144205).

Almost surely, 2^155242246 is an apocalyptic number.

155242246 is a deficient number, since it is larger than the sum of its proper divisors (77911394).

155242246 is an equidigital number, since it uses as much as digits as its factorization.

155242246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96758.

The product of its digits is 19200, while the sum is 31.

The square root of 155242246 is about 12459.6246331902. The cubic root of 155242246 is about 537.4482326924.

Adding to 155242246 its reverse (642242551), we get a palindrome (797484797).

The spelling of 155242246 in words is "one hundred fifty-five million, two hundred forty-two thousand, two hundred forty-six".