155231002 has 16 divisors (see below), whose sum is σ = 248899392. Its totient is φ = 72429280.

The previous prime is 155230993. The next prime is 155231017. The reversal of 155231002 is 200132551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39268 + ... + 43039.

It is an arithmetic number, because the mean of its divisors is an integer number (15556212).

Almost surely, 2^155231002 is an apocalyptic number.

155231002 is a deficient number, since it is larger than the sum of its proper divisors (93668390).

155231002 is a wasteful number, since it uses less digits than its factorization.

155231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82373.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 155231002 is about 12459.1734075740. The cubic root of 155231002 is about 537.4352568133.

Adding to 155231002 its reverse (200132551), we get a palindrome (355363553).

The spelling of 155231002 in words is "one hundred fifty-five million, two hundred thirty-one thousand, two".