155449102 has 4 divisors (see below), whose sum is σ = 233173656. Its totient is φ = 77724550.

The previous prime is 155449087. The next prime is 155449117. The reversal of 155449102 is 201944551.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (155449087) and next prime (155449117).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38862274 + ... + 38862277.

It is an arithmetic number, because the mean of its divisors is an integer number (58293414).

Almost surely, 2^155449102 is an apocalyptic number.

155449102 is a deficient number, since it is larger than the sum of its proper divisors (77724554).

155449102 is an equidigital number, since it uses as much as digits as its factorization.

155449102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77724553.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 155449102 is about 12467.9229224438. The cubic root of 155449102 is about 537.6868383814.

It can be divided in two parts, 155449 and 102, that added together give a palindrome (155551).

The spelling of 155449102 in words is "one hundred fifty-five million, four hundred forty-nine thousand, one hundred two".