155485402 has 8 divisors (see below), whose sum is σ = 234412596. Its totient is φ = 77347872.

The previous prime is 155485333. The next prime is 155485439. The reversal of 155485402 is 204584551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152992161 + 2493241 = 12369^2 + 1579^2 .

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

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, 196923 + ... + 197710.

Almost surely, 2^155485402 is an apocalyptic number.

155485402 is a deficient number, since it is larger than the sum of its proper divisors (78927194).

155485402 is a wasteful number, since it uses less digits than its factorization.

155485402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394832.

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 155485402 is about 12469.3785731287. The cubic root of 155485402 is about 537.7286881207.

The spelling of 155485402 in words is "one hundred fifty-five million, four hundred eighty-five thousand, four hundred two".