155015146 has 32 divisors (see below), whose sum is σ = 289251648. Its totient is φ = 61213440.

The previous prime is 155015131. The next prime is 155015173. The reversal of 155015146 is 641510551.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11080 + ... + 20803.

It is an arithmetic number, because the mean of its divisors is an integer number (9039114).

Almost surely, 2^155015146 is an apocalyptic number.

155015146 is a deficient number, since it is larger than the sum of its proper divisors (134236502).

155015146 is a wasteful number, since it uses less digits than its factorization.

155015146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31926.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 155015146 is about 12450.5078611276. The cubic root of 155015146 is about 537.1860316013.

Adding to 155015146 its reverse (641510551), we get a palindrome (796525697).

The spelling of 155015146 in words is "one hundred fifty-five million, fifteen thousand, one hundred forty-six".